{"id":40126,"date":"2023-12-11T13:22:35","date_gmt":"2023-12-11T12:22:35","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=40126"},"modified":"2023-12-12T09:55:08","modified_gmt":"2023-12-12T08:55:08","slug":"bien-ensemble-mais-lun-prefere-les-champs-alors-que-lautre-prefere-les-bois","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/bien-ensemble-mais-lun-prefere-les-champs-alors-que-lautre-prefere-les-bois\/","title":{"rendered":"Bien ensemble, mais l\u2019un pr\u00e9f\u00e8re les champs alors que l\u2019autre pr\u00e9f\u00e8re les bois"},"content":{"rendered":"<p>En plantation m\u00e9lang\u00e9e, l\u2019utilisation d\u2019essences fixatrices d\u2019azote, comme l\u2019aulne, pr\u00e9sente un atout suppl\u00e9mentaire par l\u2019am\u00e9lioration de la fertilit\u00e9 du sol qui b\u00e9n\u00e9ficie aux autres essences du m\u00e9lange comme aux cultures herbac\u00e9es associ\u00e9es dans le cas de l\u2019agroforesterie.<br \/>\nPar ailleurs, nous savons que la croissance de l\u2019arbre est directement li\u00e9e \u00e0 la dur\u00e9e de la saison de v\u00e9g\u00e9tation et que les processus ph\u00e9nologiques (d\u00e9bourrement et entr\u00e9e en dormance) sont rythm\u00e9s par la temp\u00e9rature, la photop\u00e9riode mais aussi par la disponibilit\u00e9 en nutriments.<\/p>\n<p>Partant de ces constats, des chercheurs ont \u00e9tudi\u00e9 l\u2019effet de l\u2019association de l\u2019aulne avec le peuplier hybride, en for\u00eat et en agroforesterie, sur leur ph\u00e9nologie et donc la dur\u00e9e de la saison de v\u00e9g\u00e9tation de ces essences en comparaison avec leurs monocultures respectives.<\/p>\n<p>En agroforesterie, les aulnes ont eu tendance \u00e0 d\u00e9bourrer plus tardivement et \u00e0 entrer en dormance plus t\u00f4t , indiquant une saison de v\u00e9g\u00e9tation plus courte, alors que le contraire a \u00e9t\u00e9 observ\u00e9 pour le peuplier.<\/p>\n<p>L\u2019absence d\u2019une ligne d\u2019arbres sur deux en agroforesterie pourrait avoir eu un effet n\u00e9gatif sur la saison de v\u00e9g\u00e9tation de l\u2019aulne. La diff\u00e9rence la plus importante ayant \u00e9t\u00e9 observ\u00e9e entre les m\u00e9langes agroforestiers et forestiers, on peut supposer que les variations climatiques sont att\u00e9nu\u00e9es quand l\u2019aulne se retrouve sous les houppiers des peupliers en m\u00e9lange. Cet effet pourrait avoir \u00e9t\u00e9 contrebalanc\u00e9 chez le peuplier en agroforesterie par les meilleures performances de croissance du peuplier li\u00e9es \u00e0 une moindre concurrence.<\/p>","protected":false},"excerpt":{"rendered":"<p>En plantation m\u00e9lang\u00e9e, l\u2019utilisation d\u2019essences fixatrices d\u2019azote, comme l\u2019aulne, pr\u00e9sente un atout suppl\u00e9mentaire par l\u2019am\u00e9lioration de la fertilit\u00e9 du sol qui b\u00e9n\u00e9ficie aux autres essences du m\u00e9lange comme aux cultures herbac\u00e9es associ\u00e9es dans le cas de l\u2019agroforesterie. Par ailleurs, nous savons que la croissance de l\u2019arbre est directement li\u00e9e \u00e0 la dur\u00e9e de la saison [&hellip;]<\/p>","protected":false},"featured_media":40103,"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>Bien ensemble, mais l\u2019un pr\u00e9f\u00e8re les champs alors que l\u2019autre pr\u00e9f\u00e8re les bois - 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\/bien-ensemble-mais-lun-prefere-les-champs-alors-que-lautre-prefere-les-bois\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bien ensemble, mais l\u2019un pr\u00e9f\u00e8re les champs alors que l\u2019autre pr\u00e9f\u00e8re les bois - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"En plantation m\u00e9lang\u00e9e, l\u2019utilisation d\u2019essences fixatrices d\u2019azote, comme l\u2019aulne, pr\u00e9sente un atout suppl\u00e9mentaire par l\u2019am\u00e9lioration de la fertilit\u00e9 du sol qui b\u00e9n\u00e9ficie aux autres essences du m\u00e9lange comme aux cultures herbac\u00e9es associ\u00e9es dans le cas de l\u2019agroforesterie. 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