{"id":583,"date":"2025-07-16T12:00:00","date_gmt":"2025-07-16T12:00:00","guid":{"rendered":"https:\/\/grenoble.apbg.org\/?p=583"},"modified":"2026-01-04T20:47:40","modified_gmt":"2026-01-04T20:47:40","slug":"stage-de-terrain-vallee-de-lubaye","status":"publish","type":"post","link":"https:\/\/grenoble.apbg.fr\/?p=583","title":{"rendered":"Stage de terrain &#8211; For\u00eats de montagne UBAYE (04) &#8211; Du 15 au 18 juillet 2025"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center\"><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73ddf169&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73ddf169\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"532\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-1024x532.jpg\" alt=\"\" class=\"wp-image-1629\" style=\"aspect-ratio:1.924825123478146\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-1024x532.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-300x156.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-768x399.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-1536x799.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1350150b-scaled-1-2048x1065.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">L&rsquo;Ubaye au Plan de Parouart. M\u00e9l\u00e8zes en automne. (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Les <strong>activit\u00e9s de terrain<\/strong> de ce stage avaient pour objectif de comprendre l\u2019<strong>apport de la recherche<\/strong> dans l\u2019\u00e9tude de la co\u00e9volution des soci\u00e9t\u00e9s humaines avec la for\u00eat (<em>notion de socio-\u00e9cosyst\u00e8me forestier<\/em>).<\/p>\n\n\n\n<p>Pour cela il a \u00e9t\u00e9 propos\u00e9 d&rsquo;\u00e9tudier les <strong>modifications du paysage<\/strong> sur une \u00e9chelle de temps plurimill\u00e9naire, notamment via le peuplement forestier. Il a aussi \u00e9t\u00e9 \u00e9tudi\u00e9 <strong>les variations des cernes de croissance<\/strong> des arbres, les <strong>strat\u00e9gies de r\u00e9g\u00e9n\u00e9ration<\/strong>, et le <strong>r\u00f4le des humus<\/strong>.<\/p>\n\n\n\n<p>En compl\u00e9ment, il a \u00e9t\u00e9 propos\u00e9 en soir\u00e9e des <strong>\u00e9changes entre chercheurs, enseignants et grand public<\/strong> gr\u00e2ce \u00e0 des <strong>conf\u00e9rences d\u00e9bats <\/strong>sur les enjeux du r\u00e9chauffement climatique impactant les for\u00eats de montagne.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.univ-amu.fr\/fr\/public\/actualites\/11-projets-laureats-de-la-bourse-aux-projets-de-culture-scientifique-2025\" target=\"_blank\" rel=\"noreferrer noopener\">Aix-Marseille Universit\u00e9<\/a><\/strong> soutient plusieurs projets de culture scientifique, comme le projet <strong>For\u00eatVerTE<\/strong><br>(<strong><em>Formation,&nbsp;approche sciences-soci\u00e9t\u00e9,&nbsp;biodiversit\u00e9 et transition \u00e9cologique,&nbsp;for\u00eats de montagne<\/em><\/strong>).<\/p>\n\n\n\n<p><em><strong>For\u00eatVerTE <\/strong>est un projet <strong>pluridisciplinaire <\/strong>d\u2019animation scientifique et culturelle autour du th\u00e8me des for\u00eats et des paysages de montagne,  qui associe un apprentissage \u00e0 la d\u00e9marche scientifique,  \u00e0 destination des enseignants de SVT (<strong>APBG<\/strong>) par la participation \u00e0 la construction de donn\u00e9es scientifiques sur le terrain,  et \u00e0 des animations grand public (conf\u00e9rences, sorties et ateliers p\u00e9dagogiques en partenariat avec des acteurs locaux).<\/em> <strong><em>Aix Marseille Universit\u00e9 a pris en charge l&rsquo;intervention scientifique par le financement du  projet de culture scientifique <strong>For\u00eatVerTE<\/strong>.<\/em><\/strong> Organisation IMBE Brigitte Talon et APBG Armand Audinos<\/p>\n\n\n\n<p class=\"has-text-align-center has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color has-large-font-size wp-elements-c302bd873659c6e579f6b755767f3b88\"><strong>Le projet est pilot\u00e9 par l\u2019Institut M\u00e9diterran\u00e9en de Biodiversit\u00e9 et d\u2019\u00c9cologie IMBE d&rsquo;Aix-Marseille Universit\u00e9, en partenariat avec le LECA (<em>Dynamique foresti\u00e8re<\/em>) de l\u2019Universit\u00e9 Grenoble Alpes et l\u2019EDYTEM (<em>P\u00e9dologie<\/em>) de l\u2019Universit\u00e9 Savoie Mont Blanc.<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-larger-font-size\" style=\"text-decoration:underline\"><strong>Scientifiques et acteurs locaux impliqu\u00e9s:<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">Brigitte <strong>TALON <\/strong>(<em>IMBE<\/em>) &#8211; Philippe <strong>CHOLER <\/strong>(<em>LECA<\/em>) &#8211; Fr\u00e9d\u00e9ric <strong>GUIBAL<\/strong> (IMBE) &#8211; Jer\u00f4me <strong>POULENARD <\/strong>(<em>EDYTEM<\/em>) ainsi que tous leurs brillants \u00e9tudiants.<\/p>\n\n\n\n<p class=\"has-text-align-center\">Mais aussi Lor\u00e8ne <strong>LOMBARD<\/strong> de la Maison du Bois et de la For\u00eat \u00e0 M\u00e9olans-Revel.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link has-large-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.maisondubois.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">Site web de la Maison du Bois et de la For\u00eat<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73ddfc64&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73ddfc64\" class=\"aligncenter size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1384\" height=\"347\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p1-ubaye-1.jpg\" alt=\"\" class=\"wp-image-1625\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p1-ubaye-1.jpg 1384w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p1-ubaye-1-300x75.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p1-ubaye-1-1024x257.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p1-ubaye-1-768x193.jpg 768w\" sizes=\"auto, (max-width: 1384px) 100vw, 1384px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-black-color has-text-color has-link-color has-large-font-size wp-elements-4f6767220409ee18927dc61627dba27c\"><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de03d1&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de03d1\" class=\"aligncenter size-full is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"977\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p2-ubaye-b.jpg\" alt=\"\" class=\"wp-image-1626\" style=\"width:775px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p2-ubaye-b.jpg 692w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/p2-ubaye-b-212x300.jpg 212w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p><em>Voici un r\u00e9sum\u00e9 des \u00e9changes de ce stage (merci \u00e0 Delphine GIRAUD pour l&rsquo;immense travail de compilation des prises de notes, de recherche, de croisement des sources et de mise en page&#8230;!)  .  Les titres reprennent les grands th\u00e8mes abord\u00e9s. Bonne lecture&#8230;! <\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-22bacb0433c6f9db884d59c3b9e3a683\" style=\"text-decoration:underline\">1\/ <strong>Les arbres fossiles, de -305 MA \u00e0 nos jours, Des robines et des bois<\/strong>.<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-19fde8b111ea02ba72e046b279f0deee\"><strong><strong>Conf\u00e9rence <\/strong>de Myette GUIOMAR, g\u00e9ologue.<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-9ac00cf961d1ea846fe5a532228b76c6\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Il y a -305 MA les formations carbonif\u00e8res<\/strong> nous indiquent le d\u00e9but des grandes for\u00eats.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Au jurassique inf\u00e9rieur il y a -183 MA<\/strong> les formations observ\u00e9es localement sont des terres noires nomm\u00e9es <strong>\u00ab&nbsp;robines<\/strong>&nbsp;\u00bb litt\u00e9ralement \u00ab&nbsp;<strong>paysages \u00e9rod\u00e9s&nbsp;<\/strong>\u00bb. Ce sont des vallons raides de marnes tr\u00e8s ravin\u00e9es par les eaux de ruissellement.\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">On trouve parfois dans les robines des bois \u00ab\u00a0flott\u00e9s\u00a0\u00bb, des <em>araucarias<\/em>, signe de conditions de conservation rares et optimales de la mati\u00e8re. Le fond de l\u2019eau anoxique, conserve le bois.<\/li>\n\n\n\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Il est \u00e0 noter que les roches des robines sont fonc\u00e9es car elles contiennent beaucoup de cristaux de pyrite&nbsp;; les bact\u00e9ries ana\u00e9robies lors de la formation du s\u00e9diment vont transformer la mati\u00e8re organique en pyrite. Actuellement le fer de cette pyrite rouille donnant un aspect fonc\u00e9 \u00e0 ces roches.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Datant du tardiglaciaire ou du d\u00e9but de l\u2019Holoc\u00e8ne, <\/strong>il est parfois retrouv\u00e9 dans la r\u00e9gion de Barcelonnette des<strong> troncs subfossiles<\/strong>. Ce sont des pins pi\u00e9g\u00e9s dans du remblaiement s\u00e9dimentaire de fond de vallon. Pour cela il faut un enfouissement rapide dans des d\u00e9p\u00f4ts de crues ou de torrents. Lors du surcreusement des torrents actuels, dans les fonds et les berges, il est possible de retrouver des troncs subfossiles en position de vie, parfois avec leur \u00e9corce. Il est important de les pr\u00e9server, car gr\u00e2ce \u00e0 leurs cernes ils permettent \u00e0 la fois, d\u2019\u00eatre des sources de donn\u00e9es pour l\u2019histoire du climat, mais aussi de mesurer le radiocarbone \u00e0 des dates connues, afin de calibrer les r\u00e9sultats de datation. (<em>Source compl\u00e9mentaire&nbsp;: C\u00e9cile MIRAMONT<\/em>)<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Myette GUIOMAR <\/strong>\u00e9tait encore tr\u00e8s r\u00e9cemment g\u00e9ologue et charg\u00e9e de missions scientifiques pour la gestion de la R\u00e9serve Naturelle G\u00e9ologique de Haute-Provence au Conseil D\u00e9partemental, service de l&rsquo;Environnement.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ci-dessous <strong>2 publications des ann\u00e9es 2000 de C\u00e9cile MIRAMONT<\/strong>, Ma\u00eetre de Conf\u00e9rences \u00e0 Aix-Marseille Universit\u00e9 (IMBE). G\u00e9ographe, g\u00e9omorphologue et dendrochronologue, elle \u00e9tudie les environnements du pass\u00e9 et les interactions entre climat et soci\u00e9t\u00e9s dans les paysages m\u00e9diterran\u00e9ens et alpins. Elle travaille sur des arbres subfossiles et les d\u00e9p\u00f4ts s\u00e9dimentaires alluviaux et lacustres pour mieux comprendre les r\u00e9ponses des \u00e9cosyst\u00e8mes montagnards aux changements climatiques.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Surveillance-et-exploitation-des-gisements-de-bois-fossiles-ubayens-C.-Miramont.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Surveillance et exploitation des gisements de bois fossiles ubayens C. Miramont.\"><\/object><a id=\"wp-block-file--media-b8f0bfc3-0dc2-4efa-a20e-bbff2148305e\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Surveillance-et-exploitation-des-gisements-de-bois-fossiles-ubayens-C.-Miramont.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Surveillance et exploitation des gisements de bois fossiles ubayens C. Miramont<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Surveillance-et-exploitation-des-gisements-de-bois-fossiles-ubayens-C.-Miramont.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-b8f0bfc3-0dc2-4efa-a20e-bbff2148305e\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-temporelle-de-la-dynamique-erosive-et-sedimentaire-dans-les-alpes-du-sud-C.-Miramont.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Evolution temporelle de la dynamique \u00e9rosive et s\u00e9dimentaire dans les alpes du sud C. Miramont.\"><\/object><a id=\"wp-block-file--media-a96d2777-f01b-4d2f-b9d6-cf2090eec1bc\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-temporelle-de-la-dynamique-erosive-et-sedimentaire-dans-les-alpes-du-sud-C.-Miramont.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Evolution temporelle de la dynamique \u00e9rosive et s\u00e9dimentaire dans les alpes du sud C. Miramont<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-temporelle-de-la-dynamique-erosive-et-sedimentaire-dans-les-alpes-du-sud-C.-Miramont.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-a96d2777-f01b-4d2f-b9d6-cf2090eec1bc\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-space-between is-layout-flex wp-container-core-buttons-is-layout-3d213aab wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/journals.openedition.org\/quaternaire\/5991\" target=\"_blank\" rel=\"noreferrer noopener\">L\u2019\u00e9talonnage du temps du radiocarbone par les cernes d\u2019arbres. L\u2019apport des s\u00e9ries dendrochronologiques du gisement de bois subfossiles du torrent des barbiers (Alpes fran\u00e7aises du sud)<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Publication compl\u00e9mentaire de 2011 sur l&rsquo;apport des bois subfossiles <\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-e117446299af6344cff0617c3166cf91\" style=\"text-decoration:underline\">2\/ <strong>Rencontre avec l\u2019Office National des For\u00eats.<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Au 19<sup>e<\/sup> si\u00e8cle l\u2019exploitation des for\u00eats est maximale, les campagnes sont peupl\u00e9es et il y a besoin de nombreux p\u00e2turages. Les d\u00e9boisements sont massifs et en cons\u00e9quence les glissements de terrains et les crues sont catastrophiques.<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">\u00ab&nbsp;Pour lutter contre ces ph\u00e9nom\u00e8nes naturels, l\u2019Administration des Eaux et For\u00eats a cr\u00e9\u00e9 en 1861 le service de reboisement des montagnes, devenant plus tard le service de <strong>Restauration des Terrains en Montagne (RTM)<\/strong>. A l\u2019\u00e9poque, sa mission consiste \u00e0 reboiser les terrains d\u00e9grad\u00e9s et \u00e0 am\u00e9nager des dispositifs de protection des populations contre les risques naturels qui combinent des techniques de g\u00e9nie civil et g\u00e9nie \u00e9cologique.&nbsp;\u00bb<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-space-between is-layout-flex wp-container-core-buttons-is-layout-3d213aab wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.onf.fr\/vivre-la-foret\/raconte-moi-la-foret\/comprendre-la-foret\/restauration-des-terrains-en-montagne\/les-enjeux\/+\/2318::restauration-des-terrains-en-montagne-une-mission-historique-de-lonf.html\" target=\"_blank\" rel=\"noreferrer noopener\">Restauration des terrains en Montagne : une mission historique de l&rsquo;ONF<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.onf.fr\/vivre-la-foret\/+\/2313::zoom-en-region-des-actions-rtm.html\" target=\"_blank\" rel=\"noreferrer noopener\">Zoom en r\u00e9gion des actions RTM en 2025<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.calameo.com\/read\/0047404989e76599dee59\" target=\"_blank\" rel=\"noreferrer noopener\">L\u2019ONF en chiffres:<br>31% du territoire de m\u00e9tropole est de la for\u00eat en 2023<br>Une surface qui a  doubl\u00e9e en 2 si\u00e8cles<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center\">___________________________________________________________________________________________<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><em>Ci-dessous une th\u00e8se visant \u00e0 am\u00e9liorer la connaissance scientifique des processus torrentiels et proposant de nouvelles pistes de recherche pour le d\u00e9veloppement de futurs mod\u00e8les.<\/em><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/theses.hal.science\/tel-00119737v2\" target=\"_blank\" rel=\"noreferrer noopener\">Morphologie et dynamique des laves torrentielles : Applications aux torrents des Terres Noires du bassin de BARCELONNETTE<br><strong>Th\u00e8se d&rsquo;Alexandre RE<\/strong>MAITRE<strong> de 2006<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-larger-font-size\" style=\"font-style:normal;font-weight:1000;text-decoration:underline\"><strong>Exemple de l\u2019am\u00e9nagement du Riou Bourdoux au nord-ouest de Barcelonnette.<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de12ce&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de12ce\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1636\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370180b-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Robines du Riou Bourdoux (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de1878&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de1878\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1637\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370181b-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Robines du Riou Bourdoux (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">C\u2019est une robine tr\u00e8s vaste et raide qui canalise de nombreuses laves torrentielles d\u00e9vastatrices au 19<sup>e<\/sup> si\u00e8cle car le sol est totalement nu. <strong>Des travaux sont effectu\u00e9s de 1874 \u00e0 1897&nbsp;: reboisement intensif du vallon et correction du canal d\u2019\u00e9coulement<\/strong>.<\/p>\n\n\n\n<p class=\"has-text-align-left has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Le lit du torrent est sur\u00e9lev\u00e9 en paliers pour stocker au fur et \u00e0 mesure de leur arriv\u00e9e les mat\u00e9riaux, tout en retardant leur descente. Les \u00e9coulements sont aussi recentr\u00e9s. La pente est diminu\u00e9e.<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ci-dessous 4 documents, une archive photo de 1892 issue du site de l&rsquo;INRAE, un livre un peu ancien d\u00e9di\u00e9 \u00e0 ce lieu embl\u00e9matique, une publication reprenant des donn\u00e9es plus r\u00e9centes des ann\u00e9es 2000 et en compl\u00e9ment, une publication reprenant <strong>l&rsquo;\u00e9volution des surfaces bois\u00e9es en France depuis le d\u00e9but du 19e si\u00e8cle<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de1f10&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de1f10\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"780\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Torrent_du_Riou-Bourdoux_vues_de_.Sardi_Nicolas_btv1b107018145_1-1024x780.jpeg\" alt=\"\" class=\"wp-image-1662\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Torrent_du_Riou-Bourdoux_vues_de_.Sardi_Nicolas_btv1b107018145_1-1024x780.jpeg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Torrent_du_Riou-Bourdoux_vues_de_.Sardi_Nicolas_btv1b107018145_1-300x229.jpeg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Torrent_du_Riou-Bourdoux_vues_de_.Sardi_Nicolas_btv1b107018145_1-768x585.jpeg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Torrent_du_Riou-Bourdoux_vues_de_.Sardi_Nicolas_btv1b107018145_1.jpeg 1105w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Photo du Riou Bourdoux de 1892 montrant son am\u00e9nagement. (source: Agate INRAE ) <a href=\"https:\/\/agate.inrae.fr\/agate\/fr\/content\/le-riou-bourdoux-comment-dompter-ce-terrible-torrent\" target=\"_blank\" rel=\"noreferrer noopener\">Toutes les photos d&rsquo;\u00e9poque en ligne  sur le site Agate INRAE, cliquer ici<\/a><\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de24ea&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de24ea\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"728\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0096-728x1024.jpg\" alt=\"\" class=\"wp-image-1657\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0096-728x1024.jpg 728w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0096-213x300.jpg 213w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0096-768x1081.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0096.jpg 874w\" sizes=\"auto, (max-width: 728px) 100vw, 728px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Livre de 1992 pr\u00e9sent\u00e9 par l&rsquo;ONF lors de notre visite du Riou Bourdoux<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-Riou-Bourdoux-un-monstre-alpin-sous-haute-surveillance.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Le Riou Bourdoux un monstre alpin sous haute surveillance.\"><\/object><a id=\"wp-block-file--media-c84b5132-de5b-460a-a3c5-a2f44b6fe66d\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-Riou-Bourdoux-un-monstre-alpin-sous-haute-surveillance.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Le Riou Bourdoux un monstre alpin sous haute surveillance<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-Riou-Bourdoux-un-monstre-alpin-sous-haute-surveillance.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-c84b5132-de5b-460a-a3c5-a2f44b6fe66d\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-des-surfaces-boisees-en-France-depuis-le-debut-du-19e-S.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Evolution des surfaces bois\u00e9es en France depuis le d\u00e9but du 19e S.\"><\/object><a id=\"wp-block-file--media-a1dfa719-dc02-4141-b508-d861e4dd3f1e\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-des-surfaces-boisees-en-France-depuis-le-debut-du-19e-S.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Evolution des surfaces bois\u00e9es en France depuis le d\u00e9but du 19e S<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Evolution-des-surfaces-boisees-en-France-depuis-le-debut-du-19e-S.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-a1dfa719-dc02-4141-b508-d861e4dd3f1e\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Encore en 2025,<\/strong> l\u2019ONF assure la gestion des for\u00eats domaniales et de leurs ouvrages de protection. Il est aussi charg\u00e9 de la pr\u00e9vention des risques naturels (seuils de correction torrentielle, dispositifs contre les chutes de blocs, dispositifs paravalanches\u2026).<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Dans ce cadre l\u00e0 des plantations sont faites r\u00e9guli\u00e8rement avec des protocoles stricts qui permettent de choisir les essences appropri\u00e9es tout en favorisant la biodiversit\u00e9 et l&rsquo;adaptation au changement climatique.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de2dfb&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de2dfb\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1638\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370197-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Plantations de Cormiers et de Pins de salzmann dans le Ravin de la Grande Combe (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-5e6b19ed wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/observatoire.foret.gouv.fr\/themes\/suivre-la-sante-des-forets-outils-et-protocoles\" target=\"_blank\" rel=\"noreferrer noopener\">Suivre la sant\u00e9 des for\u00eats :<br>DEPERIS : \u00e9valuation de la situation sanitaire de la for\u00eat en quantifiant le d\u00e9p\u00e9rissement<br>ARCHI:  diagnostic visuel des capacit\u00e9s de r\u00e9silience des arbres d\u00e9p\u00e9rissants<br>Les images satellites Sentinel-2 du programme europ\u00e9en Copernicus<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-5e6b19ed wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/climessences.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">ClimEssences&nbsp;: aide pour le choix des essences foresti\u00e8res<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-dcf681e46d85f279d0ff32f225b849f2\" style=\"text-decoration:underline\">3\/ Rencontre avec les acteurs de Natura 2000<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.ubaye.com\/decouvrez\/vallee-ubaye\/espaces-naturels-proteges\/\" target=\"_blank\" rel=\"noreferrer noopener\">Les sites class\u00e9s Natura 2000 dans la vall\u00e9e de l&rsquo;Ubaye<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-08822450f6787d98022d86a18abd4d6c\" style=\"text-decoration:underline\">4\/ Comment expliquer la pr\u00e9dominance du M\u00e9l\u00e8ze en Ubaye?<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-8a4f164f1d54424ae493c74166f36c56\"><strong>Explications de Brigitte TALON dans 2 articles ci-dessous<\/strong>, qui retracent l&rsquo;histoire de la vall\u00e9e \u00e0 travers l&rsquo;\u00e9tude des charbons de bois.<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de3966&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de3966\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1640\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370215-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">De la Combe Br\u00e9mond, vue vers le vallon de Mary, for\u00eat (jaune) envahie par la Tordeuse du M\u00e9l\u00e8ze en juillet 2025 (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de405b&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de405b\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1639\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370214-1-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">De la Combe Br\u00e9mond, vue vers Maljasset et la Mortice (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">M\u00e9l\u00e8zes et Pins cembro (Pin arolle) poussent ensemble, ce sont deux arbres compl\u00e9mentaires. Apr\u00e8s la d\u00e9forestation massive entre le moyen \u00e2ge et le 19e si\u00e8cle les arbres qui ont recolonis\u00e9 les versants sont uniquement des M\u00e9l\u00e8zes.<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-regular-font-size\">Les graines des M\u00e9l\u00e8zes se diss\u00e9minent par le vent alors que le Pin cembro a besoin d&rsquo;un oiseau, le Casse-noix mouchet\u00e9 pour diss\u00e9miner ses graines. <\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Avec le M\u00e9l\u00e8ze, la d\u00e9forestation a aussi fait dispara\u00eetre le Pin cembro mais \u00e9galement l&rsquo;oiseau se nourrissant de ses graines et permettant les semis.<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Le M\u00e9l\u00e8ze pr\u00e9sent dans les vall\u00e9es adjacentes a pu se resemer seul et recoloniser les vall\u00e9es. Le Pin cembro d\u00e9pendant du Casse-noix n&rsquo;a pas pu se resemer seul. Ainsi les for\u00eats d&rsquo;Ubaye sont actuellement essentiellement compos\u00e9es de M\u00e9l\u00e8zes.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Pin-cembro-et-charbons-de-bois-B.-Talon.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Pin cembro et charbons de bois B. Talon.\"><\/object><a id=\"wp-block-file--media-4fb976d9-3d7f-48c9-a473-1654b5ad1bbd\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Pin-cembro-et-charbons-de-bois-B.-Talon.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Pin cembro et charbons de bois B. Talon<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Pin-cembro-et-charbons-de-bois-B.-Talon.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-4fb976d9-3d7f-48c9-a473-1654b5ad1bbd\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Des-arbres-un-paysage-une-histoire-B.-Talon.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Des arbres, un paysage, une histoire B. Talon.\"><\/object><a id=\"wp-block-file--media-8ebbf7e4-3ae7-4b94-a61f-9b06fc711940\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Des-arbres-un-paysage-une-histoire-B.-Talon.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Des arbres, un paysage, une histoire B. Talon<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Des-arbres-un-paysage-une-histoire-B.-Talon.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-8ebbf7e4-3ae7-4b94-a61f-9b06fc711940\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-c763a2aa743fce3401aa46c5182a7e42\" style=\"text-decoration:underline\">5\/ Pourquoi la for\u00eat remonte dans les Alpes du sud?<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-3648412fd262cea1e22a8d199d880110\">Conf\u00e9rence de Baptiste NICOUD, Doctorant au Laboratoire d\u2019\u00c9cologie Alpine UGA.<\/h2>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de4a7e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de4a7e\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"287\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-1024x287.jpg\" alt=\"\" class=\"wp-image-1642\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-1024x287.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-300x84.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-768x215.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-1536x430.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370269b-scaled-1-2048x574.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Vallon de la Braissette (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">La limite climatique de la forme de Vie Arbre est de 6.4\u00b0C en \u00e9t\u00e9. Or avec le r\u00e9chauffement climatique est-ce que les arbres remontent en altitude? Il a \u00e9t\u00e9 observ\u00e9 durant les 40 derni\u00e8res ann\u00e9es qu&rsquo;il y a 2 fois <strong>plus d&rsquo;arbres et que leur pr\u00e9sence est remont\u00e9e de 100m en altitude.<\/strong> Afin de reconstituer la trajectoire de cette remont\u00e9e il a \u00e9t\u00e9 r\u00e9alis\u00e9 des carottes d&rsquo;arbres \u00e0 plusieurs altitudes.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Observation du terrain: Les arbres ont tous le m\u00eame \u00e2ge, de 2 300 m \u00e0 2 700 m tous les arbres ont colonis\u00e9 les vallons dans les ann\u00e9es 1995 \u00e0 2000.<\/strong><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Plusieurs <strong>hypoth\u00e8ses<\/strong> ont \u00e9t\u00e9 \u00e9mises. Est-ce d\u00fb \u00e0 des <strong>facteurs anthropiques<\/strong>, tels que des changements de pratiques agricoles ou une variation dans la quantit\u00e9 de moutons dans les vallons? Est-ce d\u00fb \u00e0 des <strong>facteurs climatiques<\/strong> davantage favorables au M\u00e9l\u00e8ze? \n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Il y a eu une diminution de la population humaine jusque dans les ann\u00e9es 1950 et depuis la d\u00e9mographie est stable. Pas de changements des pratiques agricoles ni du nombre de moutons. Concernant le climat, il y a eu davantage d&rsquo;\u00e9pisodes de douceurs et moins d&rsquo;\u00e9pisodes de froid. La neige fond plus pr\u00e9cocement depuis les ann\u00e9es 1995 \u00e0 2000.<strong> Le climat est de plus en plus favorable.<\/strong> <strong>Il y a d\u00e9j\u00e0 des jeunes individus jusqu&rsquo;\u00e0 2 700 m, la limite de Vie remonte.<\/strong><\/li>\n\n\n\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Le Lagop\u00e8de est une esp\u00e8ce qui aime les milieux ouverts, la for\u00eat vient dor\u00e9navant empi\u00e9ter sur son milieu de Vie.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">L&rsquo;\u00e9tage subalpin a \u00e9t\u00e9 d\u00e9forest\u00e9 pour favoriser l&rsquo;agriculture. Entre l&rsquo;exode rural du 19e si\u00e8cle et la r\u00e9volution industrielle utilisant les \u00e9nergies fossiles, la pression sur les arbres a diminu\u00e9, ils ont donc tendance \u00e0 recoloniser les milieux d&rsquo;altitude, aid\u00e9s par le r\u00e9chauffement climatique.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ci-dessous deux articles de janvier 2025 d&rsquo;<strong>Arthur BAYLE et de Baptiste NICOUD<\/strong> notamment. Le premier sur la v\u00e9g\u00e9talisation alpine d\u00e9crypt\u00e9e par la dynamique des peuplements et des structures foresti\u00e8res dans les limites foresti\u00e8res avanc\u00e9es des Alpes europ\u00e9ennes du sud-ouest. En anglais. Le deuxi\u00e8me, c&rsquo;est le climat et non l&rsquo;utilisation des terres, qui est \u00e0 l&rsquo;origine de l&rsquo;acc\u00e9l\u00e9ration r\u00e9cente de l&rsquo;expansion du m\u00e9l\u00e8ze dans l&rsquo;\u00e9cotone (zone de transition entre deux \u00e9cosyst\u00e8mes) for\u00eat-prairie des Alpes du Sud de la France. En anglais aussi.\n<ul class=\"wp-block-list\">\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Arthur BAYLE<\/strong> a soutenu sa th\u00e8se au LECA en 2024. Il s\u2019est <strong>sp\u00e9cialis\u00e9<\/strong> dans l\u2019\u00e9tude de la r\u00e9ponse de la v\u00e9g\u00e9tation sous l&rsquo;angle de la <strong>t\u00e9l\u00e9d\u00e9tection optique par satellite<\/strong> avec l\u2019utilisation de la constellation Landsat.<\/li>\n\n\n\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ses recherches portent sur l&rsquo;\u00e9tude de la r\u00e9ponse des \u00e9cosyst\u00e8mes froids, des r\u00e9gions alpines \u00e0 l&rsquo;Arctique, aux changements climatiques et l\u2019utilisation des terres par l\u2019Homme sur une \u00e9chelle de temps allant des derni\u00e8res d\u00e9cennies \u00e0 l&rsquo;\u00e8re industrielle.<\/li>\n\n\n\n<li class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Il est en juillet 2025 <strong>Chercheur postdoctoral \u00e0 l\u2019Universit\u00e9 de Gen\u00e8ve (UNIGE)<\/strong> au Laboratoire Impacts et risques du changement climatique \u00e0 l\u2019\u00e8re de l\u2019anthropoc\u00e8ne (C-CIA) du D\u00e9partement des Sciences de la Terre.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-verdissement-alpin-A.-Bayle-B.-Nicoud-2025-en-anglais.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Le verdissement alpin A. Bayle - B. Nicoud 2025 en anglais.\"><\/object><a id=\"wp-block-file--media-8d848c69-bef7-4dd6-9bf5-af83fedea1fc\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-verdissement-alpin-A.-Bayle-B.-Nicoud-2025-en-anglais.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Le verdissement alpin A. Bayle &#8211; B. Nicoud 2025 en anglais<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Le-verdissement-alpin-A.-Bayle-B.-Nicoud-2025-en-anglais.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-8d848c69-bef7-4dd6-9bf5-af83fedea1fc\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/acceleration-expansion-meleze-janv-2025-en-anglais.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 acceleration expansion meleze - janv 2025 en anglais.\"><\/object><a id=\"wp-block-file--media-4313dd7a-4ef4-49ff-9cb5-1e3a440dd8a6\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/acceleration-expansion-meleze-janv-2025-en-anglais.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">acceleration expansion meleze &#8211; janv 2025 en anglais<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/acceleration-expansion-meleze-janv-2025-en-anglais.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-4313dd7a-4ef4-49ff-9cb5-1e3a440dd8a6\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-larger-font-size wp-elements-f032fafa2a57ce2daa849fc44122e08a\" style=\"text-decoration:underline\">6\/ <strong>Excursion dans le Vallon de la Braissette<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-3d22a71e358b76b0625ec25597950141\"><strong>Lieu d&rsquo;\u00e9tude du verdissement (greening) par le LECA.<\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de556f&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de556f\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1643\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370270c-1-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Vallon de la Braissette (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Les datations des charbons de bois dans ce site ont montr\u00e9 qu\u2019\u00e0 l\u2019\u00e2ge du Bronze (N\u00e9olithique) il y avait des arbres jusqu\u2019aux sommets \u00e0 2 700 m.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Les hauts sommets qui forment des falaises sur le pourtour sud-est de ce vallon sont constitu\u00e9s des gr\u00e8s d\u2019Annot<\/strong>. Les sommets plus doux au sud sont constitu\u00e9s de schistes. Les pentes raides sont des \u00e9boulis actifs. C\u2019est un ancien cirque glaciaire avec des d\u00e9p\u00f4ts morainiques, des glaciers rocheux et quelques d\u00e9p\u00f4ts marneux. La Baisse de la Plate est constitu\u00e9e de calcaires dolomitiques.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">On observe des <strong>M\u00e9l\u00e8zes<\/strong> de plus en plus petits lorsque l\u2019altitude augmente. Cependant tous les arbres ont le m\u00eame \u00e2ge de 25 \u00e0 30 ans. <strong>Leur taille d\u00e9pend plut\u00f4t de la temp\u00e9rature de d\u00e9veloppement, plus on est haut en altitude plus il est difficile de s\u2019y d\u00e9velopper.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Le M\u00e9l\u00e8ze pr\u00e9f\u00e8re s\u2019installer sur des sols instables comme les \u00e9boulis, avec un sol atteignable. Il est moins pr\u00e9sent dans les parties marneuses avec pelouse \u00e0 Nard raide.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-100e64bca39553bfa29d5ce16b116493\">Observation de l&rsquo;\u00e9rosion des sols \u00e0 la <strong>Baisse de la Plate et \u00e0 la Cime de la Plate<\/strong> (EDYTEM)<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de5c3d&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de5c3d\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1644\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370299b-1-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Figures d&rsquo;\u00e9rosion de sol \u00e0 la Baisse de la Plate (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">L\u2019\u00e9tude des s\u00e9diments du Lac de la Braissette sont de v\u00e9ritables archives de l\u2019histoire locale, que l\u2019EDYTEM essaye de reconstruire.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Sur ces cr\u00eates la pelouse alpine \u00e9tait pr\u00e9sente mais <strong>l\u2019\u00e9rosion a fait partir une partie du sol ne laissant que les touradons<\/strong> (touffes d\u2019herbe avec du sol nu autour). Les quelques plantes pionni\u00e8res qui poussent entre les touradons sont fragiles et sont entrain\u00e9es par les eaux de ruissellement, laissant le sol nu. <strong>Les produits de l\u2019\u00e9rosion issus de ces hauteurs s\u2019accumulent dans le Lac de la Braissette juste en dessous. <\/strong>L\u2019\u00e9rosion est accentu\u00e9e par la pr\u00e9sence humaine (p\u00e2turage des moutons).<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Donc lorsque les cr\u00eates sont enherb\u00e9es, le lac re\u00e7oit peu de s\u00e9diments, lorsque les cr\u00eates sont \u00e9rod\u00e9es, le lac re\u00e7oit beaucoup de s\u00e9diments.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Datation de la mati\u00e8re organique des touradons&nbsp;: 400 ans.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">D\u00e9p\u00f4t de 1cm de sol tous les 40 ans&nbsp;!<\/p>\n\n\n\n<p class=\"has-text-align-center\"><\/p>\n\n\n\n<p class=\"has-text-align-center\"><\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color has-large-font-size wp-elements-b88957b39dea78ac0bb527d1dc68b1d4\">Travaux sur les s\u00e9diments lacustres par le Laboratoire EDYTEM<\/h2>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Il y a eu fin ao\u00fbt 2024 une campagne de carottage dans le lac sud de la Braissette \u00e0 2501m d\u2019altitude.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ils ont \u00e9t\u00e9 faits au moyen d\u2019une petite plate-forme portative de carottage, dans le but de collecter les s\u00e9diments lacustres et de pouvoir les analyser notamment en y quantifiant les isotopes du lithium.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Cela va permettre aux chercheurs de reconstruire l\u2019histoire de l\u2019\u00e9rosion culminale dans les \u00e9cosyst\u00e8mes \u00e0 enneigement saisonnier depuis 10 000 ans.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.brgm.fr\/fr\/reference-projet-acheve\/isotopes-lithium-outil-novateur-geosciences\" target=\"_blank\" rel=\"noreferrer noopener\">Pour Info: Les isotopes de lithium sont de bons \u00ab\u00a0traceurs\u00a0\u00bb des interactions entre eau et roche dans les processus d\u2019\u00e9rosion.<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de636f&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de636f\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"743\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-1024x743.jpg\" alt=\"\" class=\"wp-image-1645\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-1024x743.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-300x218.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-768x557.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-1536x1114.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370315b-scaled-1-2048x1486.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Lac de la Braissette (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-large-font-size\"><strong>Publication \u00e0 venir d\u2019ici la fin d\u2019ann\u00e9e 2025.<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center\">_______________________________________________________________________________<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ci-dessous 2 articles compl\u00e9mentaires de l&rsquo;EDYTEM  (en anglais) sur <strong>l&rsquo;\u00e9rosion des milieux alpins provoqu\u00e9e par les activit\u00e9s humaines depuis le n\u00e9olithique<\/strong>. Travaux sur les <strong>s\u00e9diments lacustres du Lac du Bourget.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/www.cnrs.fr\/fr\/presse\/lerosion-des-sols-de-montagne-acceleree-par-les-activites-agro-pastorales-depuis-3800-ans\" target=\"_blank\" rel=\"noreferrer noopener\">L\u2019\u00e9rosion des sols de montagne acc\u00e9l\u00e9r\u00e9e par les activit\u00e9s agro-pastorales depuis 3 800 ans.<br>R\u00e9sum\u00e9 en fran\u00e7ais.<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-triggered-magnification-of-erosion-rates-in-European-Alps-since-the-Bronze-Age.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Human-triggered magnification of erosion rates in European Alps since the Bronze Age.\"><\/object><a id=\"wp-block-file--media-b97935c4-9727-4cd3-8275-2d85569b06fc\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-triggered-magnification-of-erosion-rates-in-European-Alps-since-the-Bronze-Age.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Human-triggered magnification of erosion rates in European Alps since the Bronze Age<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-triggered-magnification-of-erosion-rates-in-European-Alps-since-the-Bronze-Age.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-b97935c4-9727-4cd3-8275-2d85569b06fc\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-and-climate-impacts-on-the-alpine-critical-zone-over-the-past-10-000-y.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Human-and-climate-impacts-on-the-alpine-critical-zone-over-the-past-10-000-y.\"><\/object><a id=\"wp-block-file--media-c55c60ec-22da-4713-8bb5-abc5bf3ef34b\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-and-climate-impacts-on-the-alpine-critical-zone-over-the-past-10-000-y.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Human-and-climate-impacts-on-the-alpine-critical-zone-over-the-past-10-000-y<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Human-and-climate-impacts-on-the-alpine-critical-zone-over-the-past-10-000-y.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-c55c60ec-22da-4713-8bb5-abc5bf3ef34b\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Les chercheurs du laboratoire EDYTEM de l&#039;Universit\u00e9 Savoie Mont Blanc \u00e9tudient les lacs sentinelles\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/nd4d2Mesz2c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\"><em>Vid\u00e9o expliquant le travail des chercheurs du Laboratoire EDYTEM de l&rsquo;Universit\u00e9 Savoie Mont Blanc sur les lacs sentinelles en 2015. (7&rsquo;25)<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-purple-color has-text-color has-link-color wp-elements-6f66995214d451f4b7db2240e5b329e3\" style=\"font-size:26px;text-decoration:underline\"><strong>7\/ ATELIER DENDROCHRONOLOGIE<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color wp-elements-b18b637863a8832f3f8bb99b8851d3f4\" style=\"font-size:20px\"><strong>Apports th\u00e9orique<\/strong>s<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Ci-dessous <strong>2 articles fondamentaux<\/strong>, un expliquant la m\u00e9thode et les applications possibles au climat et un deuxi\u00e8me expliquant le lien entre le M\u00e9l\u00e8ze et la tordeuse qui influence la croissance de l&rsquo;arbre.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/dendrogeomorphologie-2014.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 dendrogeomorphologie 2014.\"><\/object><a id=\"wp-block-file--media-c5f4fc1c-8800-4ba4-8ea1-764fc3231002\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/dendrogeomorphologie-2014.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">dendrogeomorphologie 2014<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/dendrogeomorphologie-2014.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-c5f4fc1c-8800-4ba4-8ea1-764fc3231002\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Cycles-et-importance-de-la-tordeuse-du-meleze.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Cycles et importance de la tordeuse du m\u00e9l\u00e8ze.\"><\/object><a id=\"wp-block-file--media-f3256433-9b99-4fd3-a79d-35a44470d656\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Cycles-et-importance-de-la-tordeuse-du-meleze.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Cycles et importance de la tordeuse du m\u00e9l\u00e8ze<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/07\/Cycles-et-importance-de-la-tordeuse-du-meleze.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-f3256433-9b99-4fd3-a79d-35a44470d656\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\"><\/div>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Comment date-t-on une \u00e9pave?\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/BviBZV8GhMg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Explications du principe de la dendrochronologie.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-black-color has-very-light-gray-to-cyan-bluish-gray-gradient-background has-text-color has-background has-link-color has-regular-font-size wp-elements-aa40e3ce748a87af842f326d982d1886\">\u00ab\u00a0Le portail <strong>INRAE e-phytia<\/strong> h\u00e9berge plusieurs applications en sant\u00e9 des plantes permettant <strong>d&rsquo;identifier les maladies et ravageurs<\/strong> de diverses plantes cultiv\u00e9es, de conna\u00eetre leur biologie et enfin de choisir des m\u00e9thodes de protections pertinentes.\u00a0\u00bb<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-regular-font-size has-text-align-center has-custom-font-size wp-element-button\" href=\"https:\/\/ephytia.inra.fr\/fr\/C\/21259\/Forets-Tordeuse-grise-du-meleze\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Portail INRAE Ephytia<br>Cycles de la tordeuse grise du m\u00e9l\u00e8ze<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color wp-elements-c51c02b676a1e1b9412188a046ec1cbc\" style=\"font-size:20px\">Extraction et \u00e9tude d&rsquo;une carotte<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de72c3&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de72c3\" class=\"aligncenter size-large is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1641\" style=\"width:389px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370223b-1-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Pr\u00e9l\u00e8vement d&rsquo;une carotte de M\u00e9l\u00e8ze de quelques millim\u00e8tres de diam\u00e8tre avec une tari\u00e8re de Pressler. (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"RTEE Video 4: prelevement de l&#039;arbre .3\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/njR8dxapw_o?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\"><em>Vid\u00e9o de la technique de pr\u00e9l\u00e8vement d&rsquo;une carotte avec une tari\u00e8re de Pressler. (9&rsquo;12)<\/em><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Esp\u00e8ces dans lesquelles il est possible de faire des carottes ais\u00e9ment<\/strong>: les r\u00e9sineux en g\u00e9n\u00e9ral, H\u00eatre, ch\u00e2taignier, Orme, Robinier faux acacia, Fr\u00eane, Tilleul, Noyer, arbres fruitiers, Aulne, Ch\u00eane caducifoli\u00e9&#8230;<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Esp\u00e8ces \u00e0 \u00e9viter<\/strong>: Ch\u00eane vert trop dur, Saules et Peupliers trop d\u00e9pendants de l&rsquo;eau, Cypr\u00e8s et Gen\u00e9vriers sont complexes \u00e0 \u00e9tudier.<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Se renseigner sur la l\u00e9gislation locale (for\u00eat domaniale, priv\u00e9e, communale&#8230;) <strong>et demander des autorisations<\/strong><\/strong> <strong>avant d&rsquo;effectuer des pr\u00e9l\u00e8vements .<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-regular-font-size\"><strong>Pr\u00e9parer la carotte pour la mise en \u00e9vidence et l\u2019observation des cernes<\/strong>&nbsp;: aplatissement petit \u00e0 petit au cutter de la carotte (<em>lame \u00e0 plat avec maintient de la carotte sous un morceau de bois afin de prot\u00e9ger les doigts&nbsp;!<\/em>) afin d\u2019obtenir une surface plate dans la longueur de la carotte (<em>avoir une lame bien affut\u00e9e et \u00e9viter de casser la carotte<\/em>).<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Il est ensuite possible de laisser s\u00e9cher la carotte 3 semaines, de la coller avec de la colle \u00e0 bois dans une ondulation de carton et une fois fix\u00e9e, de poncer le plus finement possible la surface obtenue pr\u00e9c\u00e9demment au cutter. Placer \u00e0 c\u00f4t\u00e9 du papier millim\u00e9tr\u00e9.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Sous une loupe pour \u00eatre pr\u00e9cis, reporter au crayon fin chaque fin de cerne fonc\u00e9 et noter les ann\u00e9es de croissance.<\/strong> <br>1<sup>er<\/sup> cerne fonc\u00e9 ext\u00e9rieur = ann\u00e9e en cours. <\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Avec une r\u00e8gle de pr\u00e9cision sous le millim\u00e8tre (par exemple pied \u00e0 coulisse digital) et toujours sous la loupe, pour chaque ann\u00e9e, mesurer sur la carotte la largeur du cerne<\/strong> de la partie la plus fonc\u00e9e ann\u00e9e n-1, \u00e0 la partie la plus fonc\u00e9e ann\u00e9e n. <\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>Faux cernes<\/strong>&nbsp;: Dans les milieux d\u2019altitude ils sont rares. C\u2019est \u00e0 plus basse altitude que les faux cernes se rencontrent, notamment sous climat m\u00e9diterran\u00e9en et peuvent abonder dans la famille des Cupressac\u00e9es.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de793a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de793a\" class=\"aligncenter size-large is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"249\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1-249x1024.jpg\" alt=\"\" class=\"wp-image-1649\" style=\"width:160px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1-249x1024.jpg 249w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1-73x300.jpg 73w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1-373x1536.jpg 373w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1-498x2048.jpg 498w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Photo-Carotte-Meleze-scaled-1.jpg 622w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Photo d&rsquo;une carotte de M\u00e9l\u00e8ze ponc\u00e9e pour observation (Photo D. Giraud)<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de7ebd&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de7ebd\" class=\"aligncenter size-large is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"711\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-1024x711.jpg\" alt=\"\" class=\"wp-image-1583\" style=\"width:860px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-1024x711.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-300x208.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-768x533.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-1536x1066.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-392x272.jpg 392w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino-130x90.jpg 130w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Carotte-loupe-bino.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Photo d\u00e9taill\u00e9e d&rsquo;une carotte de M\u00e9l\u00e8ze \u00e0 la loupe binoculaire (Photo J. C. Bourgueil)<\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de843f&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de843f\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"478\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps-1024x478.jpg\" alt=\"\" class=\"wp-image-1608\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps-1024x478.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps-300x140.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps-768x359.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps-1536x717.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/Graphique-de-lepaisseur-des-cernes-en-fct-du-temps.jpg 1679w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Pour exploiter ce document il doit \u00eatre mis en parall\u00e8le avec des donn\u00e9es climatiques locales, avec la courbe de r\u00e9f\u00e9rence du M\u00e9l\u00e8ze, avec d&rsquo;autres courbes d&rsquo;autres individus, avec les cycles d&rsquo;attaque de la tordeuse&#8230; (se r\u00e9f\u00e9rer aux informations th\u00e9oriques apport\u00e9es ci-dessus)<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-regular-font-size\">Le <strong>site internet<\/strong> \u00ab\u00a0<strong>Infoclimat\u00a0\u00bb collecte et propose l\u2019acc\u00e8s aux donn\u00e9es m\u00e9t\u00e9orologiques mondiales<\/strong> issues de plus de 700 stations \u00e9mettant en temps r\u00e9el, au profit de la compr\u00e9hension du changement climatique. Ces stations m\u00e9t\u00e9orologiques semi-professionnelles <strong>mesurent les temp\u00e9ratures, les pr\u00e9cipitations, le vent, <\/strong>et parfois depuis plusieurs d\u00e9cennies.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>L\u2019association loi 1901 \u00ab\u00a0Infoclimat<\/strong>\u00a0\u00bb existe depuis 2003. Infoclimat est membre des commissions Observation et \u00c9ducation\/Formation du Conseil Sup\u00e9rieur de la M\u00e9t\u00e9orologie, regroupant tous les acteurs de la m\u00e9t\u00e9o et du climat en France.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-fill\"><a class=\"wp-block-button__link has-large-font-size has-text-align-center has-custom-font-size wp-element-button\" href=\"https:\/\/www.infoclimat.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">Site d&rsquo;acc\u00e8s aux donn\u00e9es m\u00e9t\u00e9orologiques<br>\u00ab\u00a0Infoclimat\u00a0\u00bb la m\u00e9t\u00e9o en temps r\u00e9el<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\"><strong>L\u2019association installe ses propres stations<\/strong> pour compl\u00e9ter les r\u00e9seaux existants, <strong>r\u00e9alise des actions p\u00e9dagogiques<\/strong> vis-\u00e0-vis du grand public et des jeunes (notamment par le r\u00e9seau M\u00e9t\u00e9o \u00c0 l\u2019\u00c9cole, d\u00e9velopp\u00e9 avec Sciences \u00e0 l\u2019\u00c9cole), <strong>propose des outils d\u2019analyse climatologique ainsi que des fonctionnalit\u00e9s de science participative<\/strong>. <\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-vivid-purple-color has-text-color has-link-color wp-elements-14b7655a43cd3d310681b6b38e6da381\" style=\"font-size:26px;text-decoration:underline\">8\/ Un peu de g\u00e9ologie pour d\u00e9couvrir l&rsquo;UBAYE<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-76a81b31 wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background has-regular-font-size\"><strong>Saben\u00e7a de la Val\u00e9ia (Connaissance de la Vall\u00e9e) <\/strong>est une association dont l\u2019objectif est de conna\u00eetre et faire conna\u00eetre le patrimoine culturel et naturel de la vall\u00e9e de l\u2019Ubaye.<\/p>\n\n\n\n<p class=\"has-text-align-center has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Excellente revue de 2018 sur les glaciers rocheux caract\u00e9ristiques de l&rsquo;Ubaye, fruit de la collaboration entre scientifiques, RTM (<em>Restauration des Terrains de Montagne<\/em>) et l&rsquo;association. A d\u00e9couvrir pour retrouver et expliquer les paysages observ\u00e9s en randonn\u00e9e: glacier de la Blanche, glacier de la Pointe de Chauvet, glaciers de Marinet, glaciers rocheux du Chevalier, de Chambeyron, de l&rsquo;Infernet, du Loup, du Trou de l&rsquo;Aigle, du plateau de Tuissier, de Marinet, du B\u00e9rard, les glaciers rocheux inactifs de l&rsquo;Oronaye. <br>Vous retrouverez leur histoire depuis le tardiglaciaire il y a 15 000 ans, et bien s\u00fbr leur \u00e9volution r\u00e9cente.<\/p>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.sabenca-valeia.fr\/livres-ubaye\/\" target=\"_blank\" rel=\"noreferrer noopener\">livres sur la vall\u00e9e de l&rsquo;Ubaye \u00e9dit\u00e9s par l&rsquo;association<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de8e8e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de8e8e\" class=\"aligncenter size-large is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095-723x1024.jpg\" alt=\"\" class=\"wp-image-1656\" style=\"width:357px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095-723x1024.jpg 723w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095-212x300.jpg 212w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095-768x1088.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095-1084x1536.jpg 1084w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0095.jpg 1234w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p class=\"has-regular-font-size\"><\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ddb73de93c1&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ddb73de93c1\" class=\"aligncenter size-full is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"835\" height=\"600\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0097-3.jpg\" alt=\"\" class=\"wp-image-1658\" style=\"width:695px;height:auto\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0097-3.jpg 835w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0097-3-300x216.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/SCN_0097-3-768x552.jpg 768w\" sizes=\"auto, (max-width: 835px) 100vw, 835px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Agrandir\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/hal.science\/halsde-00786410\/file\/Collection_Edytem_11_Dendrochronologie_-.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">\u00ab&nbsp;Panorama de la dendrochronologie en France&nbsp;\u00bb<br>Colloque du 8 au 10 octobre 2009 \u00e0 Digne-les-Bains<br>Compilation d\u2019articles \u00e0 lire ICI<br>Collection EDYTEM 2010<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color has-larger-font-size wp-elements-f308a1514650e33d29d16b0e2e82d748\"><strong>\u00ab Panorama de la dendrochronologie en France &#8211; 2 \u00bb<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color has-large-font-size wp-elements-35565b73f5634537b097dbcd3906b767\"><strong>Limoges du 14 au 16 octobre 2025<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color has-regular-font-size wp-elements-0459b7d3a6fc7819a52395281904f7a7\"><strong>Ce sera l&rsquo;occasion de faire un bilan des travaux r\u00e9alis\u00e9s sur la diversit\u00e9 des disciplines rattach\u00e9es \u00e0 la dendrochronologie, tout en explorant les nouvelles th\u00e9matiques, outils et d\u00e9fis qui ont \u00e9merg\u00e9s ces derni\u00e8res ann\u00e9es.<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center has-vivid-red-color has-text-color has-link-color has-regular-font-size\"><strong> <\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-light-green-cyan-background-color has-background\" style=\"font-size:20px;font-style:normal;font-weight:700;text-transform:none\"><strong>Tous les documents mis en valeur sur cette page sont soit des publications en acc\u00e8s libre, soit des photos dont la source est mentionn\u00e9e, soit des liens vers des sites internet d&rsquo;int\u00e9r\u00eat.<\/strong> Chaque texte est un r\u00e9sum\u00e9 des informations scientifiques apport\u00e9es sur place, \u00e9tay\u00e9es et enrichies par les publications propos\u00e9es \u00e0 la consultation.<\/h2>\n\n\n\n<p class=\"has-text-align-center has-light-green-cyan-background-color has-background has-large-font-size\"><strong>Pour partager aux adh\u00e9rents une activit\u00e9 dendrochronologie \u00e0 faire en classe ou retrouver davantage d\u2019informations propos\u00e9es par les scientifiques, d\u2019autres documents sont disponibles en t\u00e9l\u00e9chargement sur l\u2019ENT de l\u2019APBG Grenoble. Nous consulter si besoin.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-light-green-cyan-background-color has-background has-large-font-size\"><strong>Delphine GIRAUD<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\"><img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"48\" src=\"https:\/\/img.icons8.com\/doodle\/48\/coniferous-tree.png\" alt=\"coniferous-tree\"><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les activit\u00e9s de terrain de ce stage avaient pour objectif de comprendre l\u2019apport de la recherche dans l\u2019\u00e9tude de la co\u00e9volution des soci\u00e9t\u00e9s humaines avec la for\u00eat (notion de socio-\u00e9cosyst\u00e8me forestier). Pour cela il a \u00e9t\u00e9 propos\u00e9 d&rsquo;\u00e9tudier les modifications du paysage sur une \u00e9chelle de temps plurimill\u00e9naire, notamment via le peuplement forestier. Il a &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/grenoble.apbg.fr\/?p=583\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":1629,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-583","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stage","item-wrap"],"_links":{"self":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=583"}],"version-history":[{"count":15,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/583\/revisions"}],"predecessor-version":[{"id":1754,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/583\/revisions\/1754"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/media\/1629"}],"wp:attachment":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}