{"id":37688,"date":"2022-11-15T15:37:08","date_gmt":"2022-11-15T14:37:08","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=37688"},"modified":"2022-11-15T15:37:08","modified_gmt":"2022-11-15T14:37:08","slug":"douglas-itineraire-sylvicole","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/douglas-itineraire-sylvicole\/","title":{"rendered":"Douglas : quel itin\u00e9raire sylvicole choisir selon ses besoins ?"},"content":{"rendered":"<p>Apr\u00e8s 46 ans de suivi, un dispositif exp\u00e9rimental install\u00e9 en France livre son bilan sur 4 itin\u00e9raires sylvicoles de douglas plant\u00e9s en 1975. Pour ces 4 placettes, un itin\u00e9raire sylvicole sp\u00e9cifique a \u00e9t\u00e9 r\u00e9alis\u00e9 pour chaque placette en termes de nombre d\u2019\u00e9claircies et de types d\u2019\u00e9claircies. Le dispositif a \u00e9t\u00e9 mesur\u00e9 tous les 3 ans depuis 1985.<\/p>\n<p>Ce dispositif r\u00e9v\u00e8le premi\u00e8rement que le type d\u2019itin\u00e9raire sylvicole, qu\u2019il soit plus ou moins dynamique, n\u2019impacte pas la hauteur dominante du peuplement. De m\u00eame, il impacte faiblement le volume total de bois produit sur 46 ans. Bien que la placette la plus dynamique pr\u00e9sente un volume total plus faible, elle montre un volume d\u2019arbre moyen plus \u00e9lev\u00e9 que les autres parcelles.<\/p>\n<p>Le capital sur pied actuel est sup\u00e9rieur pour le traitement peu dynamique (754 m\u00b3\/ha) qui a connu le moins d\u2019\u00e9claircies. \u00c0 l\u2019inverse, la placette tr\u00e8s dynamique est celle ayant le plus faible capital sur pied (516 m\u00b3\/ha).<\/p>\n<p>Ensuite, des diff\u00e9rences nettes s\u2019observent en termes de circonf\u00e9rence selon le traitement appliqu\u00e9. En effet, plus la sylviculture est dynamique plus la circonf\u00e9rence moyenne est \u00e9lev\u00e9e.<\/p>\n<p>Enfin, la placette tr\u00e8s dynamique pr\u00e9sente un volume de bois sans n\u0153ud plus important. L\u2019auteur en conclut \u00a0que l\u2019\u00e9lagage associ\u00e9 \u00e0 la sylviculture dynamique permet de produire un volume plus important de bois sans n\u0153ud, d\u2019autant plus lorsqu\u2019on \u00e9lague en priorit\u00e9 les individus dominants.<\/p>","protected":false},"excerpt":{"rendered":"<p>Apr\u00e8s 46 ans de suivi, un dispositif exp\u00e9rimental install\u00e9 en France livre son bilan sur 4 itin\u00e9raires sylvicoles de douglas plant\u00e9s en 1975. Pour ces 4 placettes, un itin\u00e9raire sylvicole sp\u00e9cifique a \u00e9t\u00e9 r\u00e9alis\u00e9 pour chaque placette en termes de nombre d\u2019\u00e9claircies et de types d\u2019\u00e9claircies. Le dispositif a \u00e9t\u00e9 mesur\u00e9 tous les 3 ans [&hellip;]<\/p>","protected":false},"featured_media":37679,"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>Douglas : quel itin\u00e9raire sylvicole choisir selon ses besoins ? - 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\/douglas-itineraire-sylvicole\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Douglas : quel itin\u00e9raire sylvicole choisir selon ses besoins ? - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Apr\u00e8s 46 ans de suivi, un dispositif exp\u00e9rimental install\u00e9 en France livre son bilan sur 4 itin\u00e9raires sylvicoles de douglas plant\u00e9s en 1975. 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