{"id":37365,"date":"2022-09-15T09:50:49","date_gmt":"2022-09-15T07:50:49","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=37365"},"modified":"2022-09-15T09:50:49","modified_gmt":"2022-09-15T07:50:49","slug":"du-chene","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/du-chene\/","title":{"rendered":"Du ch\u00eane, encore du ch\u00eane, nos peuplements n\u2019en tireront que du bien !"},"content":{"rendered":"<p>Nos ch\u00eanes europ\u00e9ens, sessile et p\u00e9doncul\u00e9, sont r\u00e9put\u00e9s thermophiles, r\u00e9sistants \u00e0 la s\u00e9cheresse et aux vents et d\u00e8s lors consid\u00e9r\u00e9s comme des esp\u00e8ces \u00e0 privil\u00e9gier pour r\u00e9sister aux changements climatiques. Leur comp\u00e9titivit\u00e9 est cependant faible dans les peuplements m\u00e9lang\u00e9s, en particulier avec le h\u00eatre, ce qui r\u00e9duit leurs chances de survie. Une \u00e9tude men\u00e9e en Bavi\u00e8re a examin\u00e9 la croissance en hauteur des ch\u00eanes en fonction des conditions environnementales, de la structure du peuplement \u00a0et de la concurrence intersp\u00e9cifique. Elle a montr\u00e9 notamment que la densit\u00e9 du peuplement et la pr\u00e9sence d\u2019un sous-\u00e9tage avaient un effet positif sur la croissance en hauteur des ch\u00eanes. Dans la plupart des m\u00e9langes, les ch\u00eanes sont moins sensibles au climat que dans les monocultures. Le m\u00e9lange avec le ch\u00eane augmente \u00e9galement la productivit\u00e9 du peuplement. Dans les conditions climatiques actuelles, la dynamique de croissance du ch\u00eane reste inf\u00e9rieure \u00e0 celle du h\u00eatre, m\u00eame dans les zones plus chaudes et plus s\u00e8ches. Le h\u00eatre semble y b\u00e9n\u00e9ficier du m\u00e9lange avec le ch\u00eane probablement pour des raisons de compl\u00e9mentarit\u00e9 et de facilitation. Les choses pourraient cependant changer avec les conditions climatiques futures.<\/p>\n<p>&nbsp;<\/p>\n<p>Une gestion foresti\u00e8re adaptative s\u2019appuie sur le m\u00e9lange de plusieurs esp\u00e8ces et une structure h\u00e9t\u00e9rog\u00e8ne qui augmente la r\u00e9sistance, la r\u00e9silience et la vitesse de restauration du peuplement apr\u00e8s une perturbation.<\/p>\n<p>Les r\u00e9sultats de l\u2019\u00e9tude encouragent \u00e0 augmenter la proportion de ch\u00eanes dans les peuplements mais la gestion sylvicole reste cruciale pour maintenir une proportion suffisante de ch\u00eanes et favoriser des ch\u00eanes vitaux, vigoureux et sains dans les peuplements m\u00e9lang\u00e9s. D\u00e8s le d\u00e9but de la fermeture du couvert, il est important de promouvoir les arbres d&rsquo;avenir par des d\u00e9tourages, qui aident \u00e0 d\u00e9velopper des couronnes vigoureuses.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nos ch\u00eanes europ\u00e9ens, sessile et p\u00e9doncul\u00e9, sont r\u00e9put\u00e9s thermophiles, r\u00e9sistants \u00e0 la s\u00e9cheresse et aux vents et d\u00e8s lors consid\u00e9r\u00e9s comme des esp\u00e8ces \u00e0 privil\u00e9gier pour r\u00e9sister aux changements climatiques. Leur comp\u00e9titivit\u00e9 est cependant faible dans les peuplements m\u00e9lang\u00e9s, en particulier avec le h\u00eatre, ce qui r\u00e9duit leurs chances de survie. Une \u00e9tude men\u00e9e en [&hellip;]<\/p>","protected":false},"featured_media":37356,"template":"","categories":[50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Du ch\u00eane, encore du ch\u00eane, nos peuplements n\u2019en tireront que du bien ! - 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\/du-chene\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Du ch\u00eane, encore du ch\u00eane, nos peuplements n\u2019en tireront que du bien ! - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Nos ch\u00eanes europ\u00e9ens, sessile et p\u00e9doncul\u00e9, sont r\u00e9put\u00e9s thermophiles, r\u00e9sistants \u00e0 la s\u00e9cheresse et aux vents et d\u00e8s lors consid\u00e9r\u00e9s comme des esp\u00e8ces \u00e0 privil\u00e9gier pour r\u00e9sister aux changements climatiques. 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