{"id":608,"date":"2007-10-15T18:28:14","date_gmt":"2007-10-15T16:28:14","guid":{"rendered":"http:\/\/staging.sillon38.com\/2007\/10\/15\/elle-avance\/"},"modified":"2007-10-15T18:28:14","modified_gmt":"2007-10-15T16:28:14","slug":"elle-avance","status":"publish","type":"post","link":"https:\/\/www.sillon38.com\/blog\/2007\/10\/15\/elle-avance\/","title":{"rendered":"Elle AVANCE\u2026"},"content":{"rendered":"<p><strong>La for\u00eat n&rsquo;est pas un ensemble fig\u00e9, bien au contraire elle avance. Ceci par colonisations naturelles et plantations. Elle couvre aujourd&rsquo;hui avec les autres espaces bois\u00e9s qui sont les peupler\u00e9es, bosquets et arbres \u00e9pars 17 millions d&rsquo;hectares. Elle constitue 30 % du territoire national m\u00e9tropolitain.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/la-foret-avance.jpg\" alt=\"la-foret-avance.jpg\" \/><\/p>\n<p>En comparaison, l&rsquo;agriculture utilise une grosse moiti\u00e9 du sol fran\u00e7ais. Au milieu du XIXe si\u00e8cle, les ensembles bois\u00e9s ne comptaient pourtant que 9 millions d&rsquo;hectares. La for\u00eat subissant un d\u00e9boisement et un d\u00e9frichement  importants pour r\u00e9pondre aux essors d\u00e9mographiques et industriels.<\/p>\n<p>L&rsquo;usage du charbon, l&rsquo;intensification agricole et la multiplication des \u00e9changes vont ralentir et stopper son recul. On passera alors de 10 millions d&rsquo;hectares au d\u00e9but du XXe si\u00e8cle, \u00e0 11 millions d&rsquo;hectares en 1950. L&rsquo;extension des surfaces foresti\u00e8res fran\u00e7aises s&rsquo;accompagne d&rsquo;un d\u00e9veloppement plus fort encore des r\u00e9coltes commercialis\u00e9es: 13 millions de m\u00e8tres cubes en 1950, 26 en 1960, 37 millions de m\u00e8tres cubes depuis 1990. Cet accroissement fait suite aux nombreuses plantations essentiellement r\u00e9sineuses effectu\u00e9es depuis la lib\u00e9ration.<\/p>\n<p>Augmentation de la r\u00e9colte de bois qui ne met pas pour autant en danger les productions futures. En ajoutant bois commercialis\u00e9 et le bois de chauffage auto consomm\u00e9 on parvient \u00e0 une soixantaine de millions de m\u00e8tres cubes pr\u00e9lev\u00e9s par an. Si on ajoute la mortalit\u00e9 des peuplements estim\u00e9e \u00e0 5 millions de m\u00e8tres cubes, on se rend compte qu&rsquo;on est bien loin de la production foresti\u00e8re qui est aujourd&rsquo;hui proche de 95 millions de m\u00e8tres cubes.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/foret-avance.jpg\" alt=\"foret-avance.jpg\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La for\u00eat n&rsquo;est pas un ensemble fig\u00e9, bien au contraire elle avance. Ceci par colonisations naturelles et plantations. Elle couvre aujourd&rsquo;hui avec les autres espaces bois\u00e9s qui sont les peupler\u00e9es, bosquets et arbres \u00e9pars 17 millions d&rsquo;hectares. Elle constitue 30&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-608","post","type-post","status-publish","format-standard","hentry","category-foret"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Elle AVANCE\u2026 -<\/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:\/\/www.sillon38.com\/blog\/2007\/10\/15\/elle-avance\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Elle AVANCE\u2026 -\" \/>\n<meta property=\"og:description\" content=\"La for\u00eat n&rsquo;est pas un ensemble fig\u00e9, bien au contraire elle avance. 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