{"id":46749,"date":"2026-09-09T14:34:53","date_gmt":"2026-09-09T12:34:53","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=46749"},"modified":"2026-09-09T15:09:53","modified_gmt":"2026-09-09T13:09:53","slug":"entre-les-deux-mon-coeur-balance","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/entre-les-deux-mon-coeur-balance\/","title":{"rendered":"Entre les deux mon c\u0153ur balance"},"content":{"rendered":"<p>Choisir de maintenir une structure \u00e9quienne ou de l\u2019irr\u00e9gulariser progressivement en optant pour une gestion en couvert continu constitue un enjeu majeur de la gestion foresti\u00e8re dans un contexte de d\u00e9r\u00e8glements climatiques.<\/p>\n<p>Cette \u00e9tude compare ces deux approches selon leurs effets sur la production, la rentabilit\u00e9, le stockage du carbone, le fonctionnement des \u00e9cosyst\u00e8mes, la biodiversit\u00e9 et la r\u00e9sistance aux perturbations. L\u2019\u00e9volution de quinze peuplements repr\u00e9sentatifs de for\u00eats situ\u00e9es en Wallonie, initialement \u00e9quiennes et proches de la maturit\u00e9, a \u00e9t\u00e9 simul\u00e9e selon ces deux strat\u00e9gies. Celles-ci reposent toutes deux sur la r\u00e9g\u00e9n\u00e9ration naturelle. D\u2019un c\u00f4t\u00e9, le peuplement est renouvel\u00e9 en une fois par la m\u00e9thode des coupes progressives, de l\u2019autre on garde un couvert continu et on r\u00e9g\u00e9n\u00e8re progressivement le peuplement en sous-\u00e9tage tout en r\u00e9coltant r\u00e9guli\u00e8rement. Les r\u00e9sultats montrent que la gestion r\u00e9guli\u00e8re comme la gestion irr\u00e9guli\u00e8re pr\u00e9sentent des performances \u00e9conomiques et un stockage du carbone globalement similaires sur la dur\u00e9e d\u2019une r\u00e9volution. Le bilan carbone est positif dans tous les peuplements et environ quatre fois sup\u00e9rieur chez les r\u00e9sineux, en raison notamment d\u2019une plus forte accumulation de biomasse vivante, d\u2019un stockage accru dans les produits r\u00e9colt\u00e9s mais surtout d\u2019un effet de substitution plus important. Dans les peuplements feuillus, le bilan carbone est en moyenne 18 % sup\u00e9rieur en irr\u00e9gulier, principalement dans les ch\u00eanaies et les m\u00e9langes ch\u00eane-h\u00eatre.<\/p>\n<p>Le fonctionnement des \u00e9cosyst\u00e8mes reste assez similaire. Toutefois, les peuplements irr\u00e9guliers pr\u00e9sentent une stabilit\u00e9 temporelle significativement sup\u00e9rieure, particuli\u00e8rement chez les r\u00e9sineux. Cette stabilit\u00e9 semble davantage li\u00e9e aux niveaux de surface terri\u00e8re et de stock en croissance d\u00e9finis pour la simulation qu\u2019\u00e0 la structure sylvicole elle-m\u00eame. La biodiversit\u00e9 pr\u00e9sente un bilan contrast\u00e9 : la diversit\u00e9 en essence tend \u00e0 \u00eatre plus \u00e9lev\u00e9e en r\u00e9gulier, tandis que les arbres porteurs de dendromicrohabitats sont g\u00e9n\u00e9ralement plus abondants en irr\u00e9gulier. Enfin, la sylviculture irr\u00e9guli\u00e8re am\u00e9liore nettement la r\u00e9sistance au vent en \u00e9vitant les phases de forte vuln\u00e9rabilit\u00e9 des peuplements r\u00e9guliers matures.<\/p>\n<p>Les r\u00e9sultats de cette \u00e9tude montrent que le choix de la sylviculture la plus appropri\u00e9e d\u00e9pend de ce que l\u2019on prend en consid\u00e9ration. La gestion irr\u00e9guli\u00e8re pr\u00e9sente un avantage en termes de stabilit\u00e9, de risque de gestion et de pr\u00e9sence de dendromicrohabitats.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choisir de maintenir une structure \u00e9quienne ou de l\u2019irr\u00e9gulariser progressivement en optant pour une gestion en couvert continu constitue un enjeu majeur de la gestion foresti\u00e8re dans un contexte de d\u00e9r\u00e8glements climatiques. Cette \u00e9tude compare ces deux approches selon leurs effets sur la production, la rentabilit\u00e9, le stockage du carbone, le fonctionnement des \u00e9cosyst\u00e8mes, la [&hellip;]<\/p>\n","protected":false},"featured_media":46761,"template":"","categories":[50],"class_list":["post-46749","resume-foret-mail","type-resume-foret-mail","status-publish","has-post-thumbnail","hentry","category-foret-mail"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Entre les deux mon c\u0153ur balance - 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\/entre-les-deux-mon-coeur-balance\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Entre les deux mon c\u0153ur balance - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Choisir de maintenir une structure \u00e9quienne ou de l\u2019irr\u00e9gulariser progressivement en optant pour une gestion en couvert continu constitue un enjeu majeur de la gestion foresti\u00e8re dans un contexte de d\u00e9r\u00e8glements climatiques. 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