{"id":34135,"date":"2021-09-10T11:44:50","date_gmt":"2021-09-10T09:44:50","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/la-correlation-positive-biodiversite-productivite-enfin-scientifiquement-prouvee\/"},"modified":"2021-09-10T11:44:50","modified_gmt":"2021-09-10T09:44:50","slug":"la-correlation-positive-biodiversite-productivite-enfin-scientifiquement-prouvee","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-correlation-positive-biodiversite-productivite-enfin-scientifiquement-prouvee\/","title":{"rendered":"La corr\u00e9lation positive \u00ab biodiversit\u00e9-productivit\u00e9 \u00bb enfin scientifiquement prouv\u00e9e"},"content":{"rendered":"<p>Effet global de la diversit\u00e9 en esp\u00e8ces d\u2019arbres sur la productivit\u00e9 des for\u00eats : l\u2019analyse des donn\u00e9es r\u00e9v\u00e8le une corr\u00e9lation positive entre biodiversit\u00e9 et productivit\u00e9 dans toutes les for\u00eats de la plan\u00e8te. Les photos ont \u00e9t\u00e9 prises sur les divers sites d\u2019\u00e9chantillonnage. (cr\u00e9dit photo : \u00a9 CIRAD, DR)<br \/>\nLe GFBI (Global Forest Biodiversity Initiative) a \u00e9t\u00e9 mis en place en 2016 pour essayer de mieux comprendre le fonctionnement des quelque quatre milliards d\u2019hectares de for\u00eats que compte notre plan\u00e8te.<br \/>\nRegroupant des chercheurs de 90 institutions internationales dont le CIRAD, les derni\u00e8res publications d\u00e9montrent que la perte de diversit\u00e9 des for\u00eats diminue leur productivit\u00e9.De fa\u00e7on g\u00e9n\u00e9rale, une diminution globale de 10% des esp\u00e8ces d\u2019arbres causerait un d\u00e9clin de 2 \u00e0 3% de la productivit\u00e9 des for\u00eats. \u00c0 l\u2019extr\u00eame, une perte de 99% de la diversit\u00e9 foresti\u00e8re aboutirait \u00e0 un d\u00e9clin de 62 \u00e0 78% de productivit\u00e9.<br \/>\nLes chercheurs ont \u00e9galement \u00e9tudi\u00e9 les cons\u00e9quences de cet appauvrissement dans la lutte contre le changement climatique : une perte de biodiversit\u00e9 moyenne (25%) se traduit par une diminution de 7,2% des capacit\u00e9s de stockage du carbone par les for\u00eats, limitant d\u2019autant leur r\u00f4le dans l\u2019att\u00e9nuation du changement climatique.<br \/>\nEnfin, ils ont estim\u00e9 la valeur \u00e9conomique de la biodiversit\u00e9 au regard de son r\u00f4le dans le maintien de la productivit\u00e9 des for\u00eats : elle repr\u00e9senterait ainsi entre 166 et 490 milliards de dollars par an (150 \u00e0 442 milliards d\u2019euros par an), soit deux fois plus que le co\u00fbt total estim\u00e9 de la conservation des for\u00eats.<br \/>\nLa perte de biodiversit\u00e9 diminue la productivit\u00e9 des for\u00eats, Communiqu\u00e9 CIRAD, 14\/10\/2016.<br \/>\nLiang J. et al. (2016). Positive Biodiversity-Productivity Relationship Predominant in Global Forest. Science ; DOI :10.1126\/science.aaf8957\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>","protected":false},"excerpt":{"rendered":"<p>Effet global de la diversit\u00e9 en esp\u00e8ces d\u2019arbres sur la productivit\u00e9 des for\u00eats : l\u2019analyse des donn\u00e9es r\u00e9v\u00e8le une corr\u00e9lation positive entre biodiversit\u00e9 et productivit\u00e9 dans toutes les for\u00eats de la plan\u00e8te. Les photos ont \u00e9t\u00e9 prises sur les divers sites d\u2019\u00e9chantillonnage. (cr\u00e9dit photo : \u00a9 CIRAD, DR) Le GFBI (Global Forest Biodiversity Initiative) a [&hellip;]<\/p>","protected":false},"featured_media":0,"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 corr\u00e9lation positive \u00ab biodiversit\u00e9-productivit\u00e9 \u00bb enfin scientifiquement prouv\u00e9e - 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-correlation-positive-biodiversite-productivite-enfin-scientifiquement-prouvee\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La corr\u00e9lation positive \u00ab biodiversit\u00e9-productivit\u00e9 \u00bb enfin scientifiquement prouv\u00e9e - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Effet global de la diversit\u00e9 en esp\u00e8ces d\u2019arbres sur la productivit\u00e9 des for\u00eats : l\u2019analyse des donn\u00e9es r\u00e9v\u00e8le une corr\u00e9lation positive entre biodiversit\u00e9 et productivit\u00e9 dans toutes les for\u00eats de la plan\u00e8te. Les photos ont \u00e9t\u00e9 prises sur les divers sites d\u2019\u00e9chantillonnage. 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