{"id":41077,"date":"2024-06-13T11:42:21","date_gmt":"2024-06-13T09:42:21","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=41077"},"modified":"2024-06-13T11:42:21","modified_gmt":"2024-06-13T09:42:21","slug":"les-incidences-du-microrelief-sur-les-plantations","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/les-incidences-du-microrelief-sur-les-plantations\/","title":{"rendered":"Les incidences du microrelief sur les plantations"},"content":{"rendered":"<p>Planter en ad\u00e9quation avec la station est primordial pour assurer la meilleure survie et une bonne croissance lors de la reconstitution des peuplements forestiers. Il existe pourtant des variabilit\u00e9s tr\u00e8s locales au sein m\u00eame de stations similaires et l\u2019explication est parfois due au microrelief. Planter dans une cuvette ou sur une motte peut fortement changer les conditions de croissance des plants. Ainsi une \u00e9quipe norv\u00e9gienne a test\u00e9 plusieurs pr\u00e9parations de terrain avant plantation de pins sylvestres, d\u2019\u00e9pic\u00e9a commun et de bouleau verruqueux. Cela a \u00e9t\u00e9 r\u00e9alis\u00e9 dans plusieurs conditions hydriques, de sols humides \u00e0 tr\u00e8s secs afin d\u2019en analyser les impacts sur les plants.<\/p>\n<p>Quatre modalit\u00e9s de plantation ont \u00e9t\u00e9 mises en place : sur motte, en \u00ab charni\u00e8re \u00bb, en d\u00e9pression et un t\u00e9moin non pr\u00e9par\u00e9\/scarifi\u00e9.<\/p>\n<p>Les principaux r\u00e9sultats de l\u2019\u00e9tude sont :<\/p>\n<ul>\n<li>Pour les conif\u00e8res, les plus grandes variations de mortalit\u00e9 entre les diff\u00e9rentes pr\u00e9parations ont \u00e9t\u00e9 observ\u00e9es sur les sols les plus humides, avec une mortalit\u00e9 \u00e9lev\u00e9e en particulier dans les d\u00e9pressions. En effet, l\u2019ennoiement semble \u00eatre la cause majeure de mortalit\u00e9 chez les conif\u00e8res.<\/li>\n<li>Pour le bouleau, il n\u2019y a pas de diff\u00e9rences significatives m\u00eame si la butte semble moins adapt\u00e9e.<\/li>\n<li>Chez les bouleaux, 30 \u00e0 40 % de la mortalit\u00e9 s\u2019explique par des pourritures.<\/li>\n<li>Les d\u00e9g\u00e2ts li\u00e9s \u00e0 la faune sont \u00e9galement un \u00e9norme probl\u00e8me pour les bouleaux et les pins. La pression d\u2019abroutissement qui r\u00e9duit fortement la croissance en hauteur des bouleaux.<\/li>\n<li>La croissance en hauteur et diam\u00e8tre est la meilleure sur les buttes pour les conif\u00e8res tandis qu\u2019il n\u2019y a aucune tendance observ\u00e9e pour les bouleaux.<\/li>\n<\/ul>\n<p>Les cartes de gradients hydriques sont tr\u00e8s utiles pour ajuster les m\u00e9thodes de plantation.<\/p>","protected":false},"excerpt":{"rendered":"<p>Planter en ad\u00e9quation avec la station est primordial pour assurer la meilleure survie et une bonne croissance lors de la reconstitution des peuplements forestiers. Il existe pourtant des variabilit\u00e9s tr\u00e8s locales au sein m\u00eame de stations similaires et l\u2019explication est parfois due au microrelief. Planter dans une cuvette ou sur une motte peut fortement changer [&hellip;]<\/p>","protected":false},"featured_media":41079,"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>Les incidences du microrelief sur les plantations - 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\/les-incidences-du-microrelief-sur-les-plantations\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les incidences du microrelief sur les plantations - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Planter en ad\u00e9quation avec la station est primordial pour assurer la meilleure survie et une bonne croissance lors de la reconstitution des peuplements forestiers. 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