{"id":34398,"date":"2021-09-10T11:45:36","date_gmt":"2021-09-10T09:45:36","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/les-forets-melangees-etat-des-lieux-des-connaissances\/"},"modified":"2021-09-10T11:45:36","modified_gmt":"2021-09-10T09:45:36","slug":"les-forets-melangees-etat-des-lieux-des-connaissances","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/les-forets-melangees-etat-des-lieux-des-connaissances\/","title":{"rendered":"Les for\u00eats m\u00e9lang\u00e9es : \u00e9tat des lieux des connaissances"},"content":{"rendered":"<p>Un s\u00e9minaire sur le th\u00e8me des for\u00eats m\u00e9lang\u00e9es a \u00e9t\u00e9 organis\u00e9 en juin dernier \u00e0 Nancy (France) par l&rsquo;INRA et l&rsquo;IRSTEA. Les projets de recherche pr\u00e9vues ou en cours portent souvent sur un m\u00e9lange de deux esp\u00e8ces cibles.<br \/>\nParmi les m\u00e9thodes mises en \u0153uvre par les chercheurs, il y a celle des \u00ab\u00a0triplets\u00a0\u00bb. Il s\u2019agit de mettre en \u0153uvre trois parcelles et d\u2019y op\u00e9rer des comparaisons :<br \/>\nSimple et efficace en apparence, cette m\u00e9thode implique que les chercheurs contournent de nombreuses difficult\u00e9s :<br \/>\nLe projet europ\u00e9en EuMixFor, pr\u00e9sent\u00e9 au s\u00e9minaire par Quentin Ponette (UCL) vise la cr\u00e9ation d\u2019un r\u00e9seau \u00e9tendu de triplets \u2013 h\u00eatre et pin sylvestre \u2013 en Europe : 32 triplets (7555 arbres), couvrant l\u2019aire de distribution conjointe des deux esp\u00e8ces. Les premi\u00e8res observations du r\u00e9seau sont \u00e9num\u00e9r\u00e9es dans l\u2019article.<br \/>\nD\u2019une mani\u00e8re g\u00e9n\u00e9rale, le r\u00f4le positif des m\u00e9langes d\u2019essences sur la sant\u00e9, la r\u00e9sistance et la productivit\u00e9 des peuplements a \u00e9t\u00e9 montr\u00e9 par de nombreuses recherches r\u00e9centes. Cependant, les m\u00e9canismes en jeu ne sont pas bien connus, et les r\u00e9sultats de recherches pr\u00e9sent\u00e9s au s\u00e9minaire montrent la complexit\u00e9 des ph\u00e9nom\u00e8nes. Or pour les gestionnaires forestiers, l\u2019enjeu justement est de pouvoir s\u2019appuyer sur des r\u00e8gles pour la mise en \u0153uvre des m\u00e9langes. Des conclusions pouvant servir de base \u00e0 des choix sylvicoles sont encore difficiles \u00e0 mettre en \u00e9vidence, et les recherches se poursuivent.<br \/>\nTisserand F. (2018). Progr\u00e8s des connaissances scientifiques sur les for\u00eats m\u00e9lang\u00e9es. La For\u00eat priv\u00e9e n\u00b0363, p.\u00a068-76.<\/p>","protected":false},"excerpt":{"rendered":"<p>Un s\u00e9minaire sur le th\u00e8me des for\u00eats m\u00e9lang\u00e9es a \u00e9t\u00e9 organis\u00e9 en juin dernier \u00e0 Nancy (France) par l&rsquo;INRA et l&rsquo;IRSTEA. Les projets de recherche pr\u00e9vues ou en cours portent souvent sur un m\u00e9lange de deux esp\u00e8ces cibles. Parmi les m\u00e9thodes mises en \u0153uvre par les chercheurs, il y a celle des \u00ab\u00a0triplets\u00a0\u00bb. Il s\u2019agit [&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>Les for\u00eats m\u00e9lang\u00e9es : \u00e9tat des lieux des connaissances - 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-forets-melangees-etat-des-lieux-des-connaissances\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les for\u00eats m\u00e9lang\u00e9es : \u00e9tat des lieux des connaissances - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Un s\u00e9minaire sur le th\u00e8me des for\u00eats m\u00e9lang\u00e9es a \u00e9t\u00e9 organis\u00e9 en juin dernier \u00e0 Nancy (France) par l&rsquo;INRA et l&rsquo;IRSTEA. Les projets de recherche pr\u00e9vues ou en cours portent souvent sur un m\u00e9lange de deux esp\u00e8ces cibles. Parmi les m\u00e9thodes mises en \u0153uvre par les chercheurs, il y a celle des \u00ab\u00a0triplets\u00a0\u00bb. 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