{"id":45453,"date":"2025-06-13T09:55:43","date_gmt":"2025-06-13T07:55:43","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=45453"},"modified":"2025-06-13T11:27:53","modified_gmt":"2025-06-13T09:27:53","slug":"la-diversite-un-atout-contre-les-extremes-climatiques","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/","title":{"rendered":"La diversit\u00e9, un atout contre les extr\u00eames climatiques"},"content":{"rendered":"<p>Une \u00e9tude r\u00e9cente, men\u00e9e par une \u00e9quipe internationale incluant l\u2019Universit\u00e9 de Fribourg, r\u00e9v\u00e8le que la diversit\u00e9 des esp\u00e8ces d&rsquo;arbres dans les for\u00eats joue un r\u00f4le crucial dans la r\u00e9gulation des temp\u00e9ratures extr\u00eames. L&rsquo;\u00e9tude s&rsquo;appuie sur le projet BEF-China, le plus grand dispositif exp\u00e9rimental mondial sur la diversit\u00e9 des arbres, situ\u00e9 dans le sud de la Chine. Des centaines de milliers d&rsquo;arbres y ont \u00e9t\u00e9 plant\u00e9s dans des parcelles contenant de 1 \u00e0 24 esp\u00e8ces diff\u00e9rentes, permettant d&rsquo;analyser l&rsquo;impact de la diversit\u00e9 sur le microclimat forestier sur une p\u00e9riode de 6 ans.<\/p>\n<p>Les principaux enseignements de l\u2019\u00e9tude sont :<\/p>\n<ul>\n<li><strong>Att\u00e9nuation des pics de chaleur<\/strong>. Une capacit\u00e9 de refroidissement allant jusqu\u2019\u00e0 4,4 \u00b0C a \u00e9t\u00e9 d\u00e9montr\u00e9e pour les for\u00eats compos\u00e9es de 24 essences par rapport aux monocultures pendant les p\u00e9riodes de forte chaleur estivale.<\/li>\n<li><strong>Isolation contre le froid<\/strong>. Les for\u00eats diversifi\u00e9es conservent \u00e9galement mieux la chaleur durant les nuits froides et l&rsquo;hiver, offrant une protection accrue contre les temp\u00e9ratures basses.<\/li>\n<li><strong>R\u00f4le de la structure foresti\u00e8re<\/strong>. La densit\u00e9 du feuillage et la diversit\u00e9 structurelle am\u00e9liorent la capacit\u00e9 des for\u00eats \u00e0 stabiliser le microclimat en r\u00e9duisant les \u00e9changes d&rsquo;air avec l&rsquo;ext\u00e9rieur.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Ces r\u00e9sultats sugg\u00e8rent que favoriser la diversit\u00e9 des essences peut renforcer la r\u00e9sistance des for\u00eats face aux extr\u00eames climatiques. Cela a des implications importantes pour les initiatives de reforestation et la conception des for\u00eats urbaines, notamment en Europe, o\u00f9 les vagues de chaleur deviennent plus fr\u00e9quentes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Une \u00e9tude r\u00e9cente, men\u00e9e par une \u00e9quipe internationale incluant l\u2019Universit\u00e9 de Fribourg, r\u00e9v\u00e8le que la diversit\u00e9 des esp\u00e8ces d&rsquo;arbres dans les for\u00eats joue un r\u00f4le crucial dans la r\u00e9gulation des temp\u00e9ratures extr\u00eames. L&rsquo;\u00e9tude s&rsquo;appuie sur le projet BEF-China, le plus grand dispositif exp\u00e9rimental mondial sur la diversit\u00e9 des arbres, situ\u00e9 dans le sud de la [&hellip;]<\/p>","protected":false},"featured_media":45433,"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>La diversit\u00e9, un atout contre les extr\u00eames climatiques - 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\/la-diversite-un-atout-contre-les-extremes-climatiques\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La diversit\u00e9, un atout contre les extr\u00eames climatiques - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Une \u00e9tude r\u00e9cente, men\u00e9e par une \u00e9quipe internationale incluant l\u2019Universit\u00e9 de Fribourg, r\u00e9v\u00e8le que la diversit\u00e9 des esp\u00e8ces d&rsquo;arbres dans les for\u00eats joue un r\u00f4le crucial dans la r\u00e9gulation des temp\u00e9ratures extr\u00eames. L&rsquo;\u00e9tude s&rsquo;appuie sur le projet BEF-China, le plus grand dispositif exp\u00e9rimental mondial sur la diversit\u00e9 des arbres, situ\u00e9 dans le sud de la [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/\" \/>\n<meta property=\"og:site_name\" content=\"For\u00eat.Nature\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-13T09:27:53+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/foretnature.be\/wp-content\/uploads\/2025\/06\/2673.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/\",\"url\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/\",\"name\":\"La diversit\u00e9, un atout contre les extr\u00eames climatiques - For\u00eat.Nature\",\"isPartOf\":{\"@id\":\"https:\/\/foretnature.be\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2025\/06\/2673.jpeg\",\"datePublished\":\"2025-06-13T07:55:43+00:00\",\"dateModified\":\"2025-06-13T09:27:53+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/foretnature.be\/resume-foret-mail\/la-diversite-un-atout-contre-les-extremes-climatiques\/#primaryimage\",\"url\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2025\/06\/2673.jpeg\",\"contentUrl\":\"https:\/\/foretnature.be\/wp-content\/uploads\/2025\/06\/2673.jpeg\",\"width\":900,\"height\":600,\"caption\":\"Une for\u00eat de feuillus dans le Morvan. \/ A deciduous forest in the Morvan. 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