{"id":34411,"date":"2021-09-10T11:45:36","date_gmt":"2021-09-10T09:45:36","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/"},"modified":"2021-09-10T11:45:36","modified_gmt":"2021-09-10T09:45:36","slug":"etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/","title":{"rendered":"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames"},"content":{"rendered":"

Une augmentation des d\u00e9p\u00e9rissements forestiers a \u00e9t\u00e9 observ\u00e9e ces derni\u00e8res d\u00e9cennies en Europe et le lien entre ces d\u00e9p\u00e9rissements et les changements climatiques est encore mal connu. Cependant, les nombreuses \u00e9tudes scientifiques sur les m\u00e9canismes fonctionnels mis \u00e0 l\u2019\u0153uvre lors d\u2019un \u00e9v\u00e9nement de d\u00e9p\u00e9rissement ont permis de d\u00e9gager plusieurs hypoth\u00e8ses :
\nCette derni\u00e8re hypoth\u00e8se a \u00e9t\u00e9 \u00e9tudi\u00e9e dans le cadre d\u2019un travail de th\u00e8se \u00e0 l\u2019Universit\u00e9 de Lorraine. L\u2019essence d\u2019\u00e9tude, le h\u00eatre commun, fait l\u2019objet d\u2019un risque potentiel face \u00e0 ces changements climatiques globaux par, notamment, une baisse de la disponibilit\u00e9 en azote du sol et une augmentation des \u00e9v\u00e9nements de s\u00e9cheresse. L\u2019objectif de l\u2019\u00e9tude \u00e9tait de d\u00e9finir comment les m\u00e9tabolismes azot\u00e9 et carbon\u00e9 pouvaient \u00eatre impact\u00e9s par des d\u00e9foliations annuelles successives ou une s\u00e9cheresse longue et intense (30 mois).
\nL\u2019\u00e9tude a permis de montrer que :
\nCes r\u00e9sultats soulignent le caract\u00e8re r\u00e9sistant du h\u00eatre face \u00e0 une contrainte, via des ajustements des m\u00e9tabolismes internes, mais cette r\u00e9sistance pourrait s\u2019amenuiser si la contrainte est plus longue et plus r\u00e9currente.
\nAnnonce de la soutenance de th\u00e8se de Pierre-Antoine Chuste, Universit\u00e9 de Lorraine : \u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain \u00e0 un \u00e9v\u00e9nement climatique extr\u00eame – Quels r\u00f4les des m\u00e9tabolismes carbon\u00e9 et azot\u00e9 dans la mort des arbres ?<\/p>","protected":false},"excerpt":{"rendered":"

Une augmentation des d\u00e9p\u00e9rissements forestiers a \u00e9t\u00e9 observ\u00e9e ces derni\u00e8res d\u00e9cennies en Europe et le lien entre ces d\u00e9p\u00e9rissements et les changements climatiques est encore mal connu. Cependant, les nombreuses \u00e9tudes scientifiques sur les m\u00e9canismes fonctionnels mis \u00e0 l\u2019\u0153uvre lors d\u2019un \u00e9v\u00e9nement de d\u00e9p\u00e9rissement ont permis de d\u00e9gager plusieurs hypoth\u00e8ses : Cette derni\u00e8re hypoth\u00e8se a […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\n\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames - For\u00eat.Nature<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Une augmentation des d\u00e9p\u00e9rissements forestiers a \u00e9t\u00e9 observ\u00e9e ces derni\u00e8res d\u00e9cennies en Europe et le lien entre ces d\u00e9p\u00e9rissements et les changements climatiques est encore mal connu. Cependant, les nombreuses \u00e9tudes scientifiques sur les m\u00e9canismes fonctionnels mis \u00e0 l\u2019\u0153uvre lors d\u2019un \u00e9v\u00e9nement de d\u00e9p\u00e9rissement ont permis de d\u00e9gager plusieurs hypoth\u00e8ses : Cette derni\u00e8re hypoth\u00e8se a […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/\" \/>\n<meta property=\"og:site_name\" content=\"For\u00eat.Nature\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/\",\"url\":\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/\",\"name\":\"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames - For\u00eat.Nature\",\"isPartOf\":{\"@id\":\"https:\/\/foretnature.be\/#website\"},\"datePublished\":\"2021-09-10T09:45:36+00:00\",\"dateModified\":\"2021-09-10T09:45:36+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/foretnature.be\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/foretnature.be\/#website\",\"url\":\"https:\/\/foretnature.be\/\",\"name\":\"For\u00eat.Nature\",\"description\":\"Une \u00e9quipe technique au service de la for\u00eat\",\"publisher\":{\"@id\":\"https:\/\/foretnature.be\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/foretnature.be\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/foretnature.be\/#organization\",\"name\":\"For\u00eat.Nature\",\"url\":\"https:\/\/foretnature.be\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/foretnature.be\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png\",\"contentUrl\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2021\/01\/logoFOblanc.png\",\"width\":300,\"height\":151,\"caption\":\"For\u00eat.Nature\"},\"image\":{\"@id\":\"https:\/\/foretnature.be\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames - For\u00eat.Nature","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/foretnature.be\/en\/resume-foret-mail\/etude-de-la-sensibilite-du-hetre-lorrain-face-a-des-aleas-climatiques-extremes\/","og_locale":"en_GB","og_type":"article","og_title":"\u00c9tude de la sensibilit\u00e9 du h\u00eatre lorrain face \u00e0 des al\u00e9as climatiques extr\u00eames - For\u00eat.Nature","og_description":"Une augmentation des d\u00e9p\u00e9rissements forestiers a \u00e9t\u00e9 observ\u00e9e ces derni\u00e8res d\u00e9cennies en Europe et le lien entre ces d\u00e9p\u00e9rissements et les changements climatiques est encore mal connu. 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