{"id":35014,"date":"2022-01-13T14:31:03","date_gmt":"2022-01-13T13:31:03","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&p=35014"},"modified":"2022-01-13T14:31:03","modified_gmt":"2022-01-13T13:31:03","slug":"comment-va-evoluer-laire-de-distribution-du-hetre-commun","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/comment-va-evoluer-laire-de-distribution-du-hetre-commun\/","title":{"rendered":"Comment va \u00e9voluer l\u2019aire de distribution du h\u00eatre commun ?"},"content":{"rendered":"

Le climat limite les aires de r\u00e9partition potentielles des esp\u00e8ces. Il est suppos\u00e9 que l\u2019installation et la croissance des individus en limite de leur aire de r\u00e9partition sont plus affect\u00e9es par des \u00e9v\u00e9nements extr\u00eames tels que la s\u00e9cheresse ou le gel que dans le centre de leur aire de r\u00e9partition. Une \u00e9tude a test\u00e9 cette hypoth\u00e8se dans le cas du h\u00eatre commun en Europe : est-ce que la croissance du h\u00eatre est plus sensible \u00e0 la s\u00e9cheresse ou au gel lorsque l\u2019individu se situe respectivement \u00e0 proximit\u00e9 de la limite s\u00e8che ou froide de sa distribution ? Et quel potentiel d\u2019adaptation pr\u00e9sente le h\u00eatre \u00e0 proximit\u00e9 de ces limites ?<\/p>\n

Les r\u00e9sultats de l\u2019\u00e9tude montrent que le h\u00eatre est sensible \u00e0 la s\u00e9cheresse sur l’ensemble de son aire de r\u00e9partition, \u00e0 l’exception de la limite de distribution s\u00e8che. De plus, la sensibilit\u00e9 au gel est plus importante \u00e0 proximit\u00e9 de la limite sud. Le h\u00eatre semble donc montrer un potentiel d\u2019adaptation plus \u00e9lev\u00e9 \u00e0 proximit\u00e9 des limites s\u00e8ches et froides. N\u00e9anmoins, l’importance du gel printanier pour la croissance du h\u00eatre semble avoir augment\u00e9 au cours des derni\u00e8res d\u00e9cennies.<\/p>\n

Si l’on consid\u00e8re le d\u00e9placement potentiel de l’aire de r\u00e9partition vers le nord-est, le h\u00eatre situ\u00e9 \u00e0 proximit\u00e9 de la limite froide sera probablement confront\u00e9 \u00e0 un stress d\u00fb \u00e0 la s\u00e9cheresse, associ\u00e9 \u00e0 un risque de gel printanier. Ces deux ph\u00e9nom\u00e8nes risquent de compliquer l’expansion de son aire de r\u00e9partition.<\/p>","protected":false},"excerpt":{"rendered":"

Le climat limite les aires de r\u00e9partition potentielles des esp\u00e8ces. Il est suppos\u00e9 que l\u2019installation et la croissance des individus en limite de leur aire de r\u00e9partition sont plus affect\u00e9es par des \u00e9v\u00e9nements extr\u00eames tels que la s\u00e9cheresse ou le gel que dans le centre de leur aire de r\u00e9partition. Une \u00e9tude a test\u00e9 cette […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\nComment va \u00e9voluer l\u2019aire de distribution du h\u00eatre commun ? - 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\/comment-va-evoluer-laire-de-distribution-du-hetre-commun\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment va \u00e9voluer l\u2019aire de distribution du h\u00eatre commun ? - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Le climat limite les aires de r\u00e9partition potentielles des esp\u00e8ces. 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