{"id":51381,"date":"2025-08-11T09:31:01","date_gmt":"2025-08-11T13:31:01","guid":{"rendered":"https:\/\/www.uqac.ca\/uqactualites\/?p=51381"},"modified":"2025-08-11T09:37:56","modified_gmt":"2025-08-11T13:37:56","slug":"le-professeur-sergio-rossi-participe-a-une-etude-internationale-sur-le-deplacement-de-la-limite-des-arbres","status":"publish","type":"post","link":"https:\/\/www.uqac.ca\/uqactualites\/2025\/08\/11\/le-professeur-sergio-rossi-participe-a-une-etude-internationale-sur-le-deplacement-de-la-limite-des-arbres\/","title":{"rendered":"Le professeur Sergio Rossi participe \u00e0 une \u00e9tude internationale sur le d\u00e9placement de la limite des arbres"},"content":{"rendered":"<p>Sergio Rossi, professeur au <a href=\"https:\/\/www.uqac.ca\/dsf\/\" target=\"_blank\" rel=\"noopener\">D\u00e9partement des sciences fondamentales<\/a> et sp\u00e9cialiste en \u00e9cophysiologie des arbres, a particip\u00e9 \u00e0 une \u00e9tude internationale analysant les connaissances des 25 derni\u00e8res ann\u00e9es sur la limite des arbres et des arbustes \u00e0 l\u2019\u00e9chelle globale. Leurs r\u00e9sultats ont \u00e9t\u00e9 publi\u00e9s dans la prestigieuse revue <em>Nature Reviews Earth &amp; Environment<\/em>.<\/p>\n<p>L\u2019\u00e9quipe de scientifiques a \u00e9tudi\u00e9 de fa\u00e7on exhaustive les processus \u00e0 la base du fonctionnement des \u00e9cosyst\u00e8mes nordiques et de haute montagne. Ils ont constat\u00e9 que les interactions biotiques et les perturbations naturelles (par exemple les feux ou les \u00e9pid\u00e9mies d\u2019insectes) compliquent la migration des arbres vers le nord ou en altitude. Ainsi, le d\u00e9placement de la limite des arbres serait en retard d&rsquo;au moins 50 ans sur le r\u00e9chauffement climatique. Un tel d\u00e9calage amplifiera les \u00e9pisodes de stress de la v\u00e9g\u00e9tation dans les zones de transition entre les \u00e9cosyst\u00e8mes montagnards, \u00e0 mesure que le r\u00e9chauffement se poursuit.<\/p>\n<p>La migration de la limite des arbres et des arbustes \u00e0 l\u2019\u00e9chelle globale produit des effets sur la biodiversit\u00e9, sur l&rsquo;alb\u00e9do et sur la dynamique de stockage du carbone dans le sol. Selon les chercheurs, ces ph\u00e9nom\u00e8nes devront \u00eatre consid\u00e9r\u00e9s dans les strat\u00e9gies d\u2019adaptation et de lutte aux changements climatiques.<\/p>\n<p><a href=\"https:\/\/portfolio.uqac.ca\/sergiorossi\/fr\/\" target=\"_blank\" rel=\"noopener\">Sergio Rossi<\/a> est ing\u00e9nieur forestier et directeur du <a href=\"https:\/\/creb-uqac.ca\/recherches\/laboratoire-sur-les-ecosystemes-terrestres-boreaux-ecoter\/\">Laboratoire EcoTer de l\u2019UQAC<\/a>. Alpiniste expert et passionn\u00e9 de la v\u00e9g\u00e9tation montagnarde, il est un pionnier des \u00e9tudes sur la croissance des \u00e9cosyst\u00e8mes forestiers. Ses projets sur la limite des arbres contribuent \u00e0 la valorisation de la ressource foresti\u00e8re dans un contexte de changement climatique.<\/p>\n<p><a href=\"https:\/\/www.nature.com\/articles\/s43017-025-00703-9\">Lire l\u2019article dans <em>Nature Reviews Earth &amp; Environment<\/em><\/a><\/p>\n<p>R\u00e9f\u00e9rence : Lu X, Zheng X, Liang E, Piao S, Babst F, Elliott GP, Sigdel SR, Wang T, Wang Y, Li X, Gao S, Zhang L, Sun J, Li J, Zhu H, Rossi S, Pe\u00f1uelas J, Camarero JJ (2025) Patterns, dynamics and drivers of alpine treelines and shrublines. <em>Nature Reviews Earth &amp; Environment 6<\/em> :489-502. https:\/\/doi.org\/10.1038\/s43017-025-00703-9<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sergio Rossi, professeur au D\u00e9partement des sciences fondamentales et sp\u00e9cialiste en \u00e9cophysiologie des arbres, a particip\u00e9 \u00e0 une \u00e9tude internationale analysant les connaissances des 25 derni\u00e8res ann\u00e9es sur la limite des arbres et des arbustes \u00e0 l\u2019\u00e9chelle globale. Leurs r\u00e9sultats ont \u00e9t\u00e9 publi\u00e9s dans la prestigieuse revue Nature Reviews Earth &amp; Environment. L\u2019\u00e9quipe de scientifiques [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":51384,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2795,4],"tags":[6,3,2777],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Le professeur Sergio Rossi participe \u00e0 une \u00e9tude internationale sur le d\u00e9placement de la limite des arbres - UQACtualit\u00e9s<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.uqac.ca\/uqactualites\/2025\/08\/11\/le-professeur-sergio-rossi-participe-a-une-etude-internationale-sur-le-deplacement-de-la-limite-des-arbres\/\" \/>\r\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Le professeur Sergio Rossi participe \u00e0 une \u00e9tude internationale sur le d\u00e9placement de la limite des arbres - UQACtualit\u00e9s\" \/>\r\n<meta property=\"og:description\" content=\"Sergio Rossi, professeur au D\u00e9partement des sciences fondamentales et sp\u00e9cialiste en \u00e9cophysiologie des arbres, a particip\u00e9 \u00e0 une \u00e9tude internationale analysant les connaissances des 25 derni\u00e8res ann\u00e9es sur la limite des arbres et des arbustes \u00e0 l\u2019\u00e9chelle globale. Leurs r\u00e9sultats ont \u00e9t\u00e9 publi\u00e9s dans la prestigieuse revue Nature Reviews Earth &amp; Environment. 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