{"id":5072,"date":"2021-04-24T13:48:41","date_gmt":"2021-04-24T13:48:41","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/?p=5072"},"modified":"2021-04-24T13:46:11","modified_gmt":"2021-04-24T13:46:11","slug":"afrique-les-forets-tropicales-en-danger","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger","title":{"rendered":"Afrique\u00a0: les\u00a0for\u00eats tropicales en danger"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong><a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a> &#8211; <a href=\"https:\/\/www.africa-press.net\/tchad\">Tchad<\/a>. <\/strong><\/span>C&rsquo;est un constat int\u00e9ressant que viennent de faire des chercheurs du Centre fran\u00e7ais de coop\u00e9ration internationale en recherche agronomique pour le d\u00e9veloppement (Cirad) et de l&rsquo;Institut fran\u00e7ais de recherche pour le d\u00e9veloppement (IRD). Les for\u00eats tropicales africaines sont v\u00e9ritablement mises en danger par le r\u00e9chauffement climatique ainsi que par les comportements humains. Ils se sont bas\u00e9s sur des donn\u00e9es r\u00e9pertoriant plus de six millions d&rsquo;arbres r\u00e9partis sur plus de 185 000 parcelles dans cinq pays : Cameroun, R\u00e9publique centrafricaine, Gabon, Congo-Brazzaville et R\u00e9publique d\u00e9mocratique du Congo (RDC).<\/p>\n<p><b>Un constat d\u00e9gag\u00e9 gr\u00e2ce \u00e0 une mod\u00e9lisation d&rsquo;un large bassin<\/b><\/p>\n<p>Les chercheurs ont pu \u00e9tablir une mod\u00e9lisation fine de ce bassin forestier, souvent qualifi\u00e9 de deuxi\u00e8me \u00ab poumon vert \u00bb du monde apr\u00e8s l&rsquo;Amazonie, et une cartographie prenant notamment en compte les esp\u00e8ces d&rsquo;arbres (plus de 190 au total), qui leur a notamment permis de classifier 10 principaux types de couverture foresti\u00e8re. Car \u00ab le bassin forestier d&rsquo;Afrique centrale est loin d&rsquo;\u00eatre un tapis vert homog\u00e8ne, \u00bb souligne Maxime R\u00e9jou-M\u00e9chain, de l&rsquo;IRD, premier auteur de l&rsquo;\u00e9tude. Une diversit\u00e9 due notamment aux variations des climats et des sols, ainsi que de l&rsquo;ampleur de l&rsquo;activit\u00e9 humaine, comme l&rsquo;agriculture itin\u00e9rante. En croisant ces r\u00e9sultats avec des mod\u00e9lisations de changements climatiques (selon les sc\u00e9narios des experts onusiens du Giec) et des changements dus \u00e0 l&rsquo;homme, les chercheurs ont \u00e9tabli une carte de la vuln\u00e9rabilit\u00e9 possible de ces zones foresti\u00e8res, bas\u00e9es notamment sur les facteurs climat, d\u00e9mographie, et activit\u00e9 humaine, notamment extraction de mati\u00e8res premi\u00e8res. Une vuln\u00e9rabilit\u00e9 particuli\u00e8rement forte sur les bordures sud et nord du bassin, sur la bande c\u00f4ti\u00e8re de l&rsquo;Atlantique et sur la majeure partie de la RDC.<\/p>\n<p>Les donn\u00e9es et cartes de l&rsquo;\u00e9tude accessibles en ligne doivent notamment permettre de \u00ab guider le d\u00e9veloppement de plans d&rsquo;utilisation des terres \u00bb qui pr\u00e9servent au mieux la gestion durable des for\u00eats, leur biodiversit\u00e9 et leur potentiel de lutte contre le r\u00e9chauffement par le stockage de carbone.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Tchad. C&rsquo;est un constat int\u00e9ressant que viennent de faire des chercheurs du Centre fran\u00e7ais de coop\u00e9ration internationale en recherche agronomique pour le d\u00e9veloppement (Cirad) et de l&rsquo;Institut fran\u00e7ais de recherche pour le d\u00e9veloppement (IRD). Les for\u00eats tropicales africaines sont v\u00e9ritablement mises en danger par le r\u00e9chauffement climatique ainsi que par les comportements humains. [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":5071,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[37,292,29],"class_list":["post-5072","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-tchad"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Afrique\u00a0: les\u00a0for\u00eats tropicales en danger - tchad<\/title>\n<meta name=\"description\" content=\"C&#039;est un constat int\u00e9ressant que viennent de faire des chercheurs du Centre fran\u00e7ais de coop\u00e9ration internationale en re ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Afrique\u00a0: les\u00a0for\u00eats tropicales en danger\" \/>\n<meta property=\"og:description\" content=\"C&#039;est un constat int\u00e9ressant que viennent de faire des chercheurs du Centre fran\u00e7ais de coop\u00e9ration internationale en re ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\" \/>\n<meta property=\"og:site_name\" content=\"tchad\" \/>\n<meta property=\"article:published_time\" content=\"2021-04-24T13:48:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2021\/04\/img-608420f6a2f14.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"376\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Afrique\u00a0: les\u00a0for\u00eats tropicales en danger\",\"datePublished\":\"2021-04-24T13:48:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\"},\"wordCount\":380,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2021\/04\/img-608420f6a2f14.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Tchad\",\"Tchad\"],\"articleSection\":[\"Divers\",\"homepage-french\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/afrique-les-forets-tropicales-en-danger\",\"name\":\"Afrique\u00a0: les\u00a0for\u00eats tropicales en danger - 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