{"id":46896,"date":"2026-10-14T15:32:50","date_gmt":"2026-10-14T13:32:50","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=46896"},"modified":"2026-10-14T15:32:50","modified_gmt":"2026-10-14T13:32:50","slug":"la-poudre-de-roche-pour-revitaliser-les-sols-acides-en-douceur","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-poudre-de-roche-pour-revitaliser-les-sols-acides-en-douceur\/","title":{"rendered":"La poudre de roche pour revitaliser les sols acides en douceur"},"content":{"rendered":"<p>L&rsquo;acidification des sols reste l&rsquo;un des principaux d\u00e9fis auxquels sont confront\u00e9es les for\u00eats europ\u00e9ennes. Les solutions conventionnelles telles que le chaulage peuvent rapidement augmenter le pH du sol, mais s\u2019accompagnent souvent d\u2019effets secondaires ind\u00e9sirables, tels que la perte de carbone et la perturbation du couvert v\u00e9g\u00e9tal. La poudre de roche, issue de roches volcaniques ou m\u00e9tamorphiques broy\u00e9es, est de plus en plus souvent consid\u00e9r\u00e9e comme une alternative durable au chaulage. Utilis\u00e9e depuis plus de 100 ans en agriculture biologique et depuis plus de 10 ans pour la restauration de la nature sur des sols sableux acides, elle fait r\u00e9cemment l\u2019objet de recherches intensives en raison de sa capacit\u00e9 \u00e0 s\u00e9questrer le CO\u2082.<\/p>\n<p>Elle pr\u00e9sente en effet plusieurs avantages. Son alt\u00e9ration lente entra\u00eene une augmentation progressive du pH, ce qui \u00e9vite les fluctuations brusques pouvant nuire \u00e0 la vie du sol et aux plantes. Ensuite, contrairement au chaulage, la poudre de roche ne favorise pas la d\u00e9composition de la mati\u00e8re organique, ce qui \u00e9vite toute perte de carbone du sol. Enfin, la poudre de roche apporte non seulement du calcium et du magn\u00e9sium, mais aussi d\u2019autres nutriments importants tels que le potassium, le phosphore, le silicium et des oligo-\u00e9l\u00e9ments.<\/p>\n<p>Des exp\u00e9riences ont \u00e9t\u00e9 men\u00e9es dans des for\u00eats fortement acidifi\u00e9es aux Pays-Bas et en Flandre. Diff\u00e9rents types de poudre ont \u00e9t\u00e9 test\u00e9s pour \u00e9tudier leur effet sur la croissance de jeunes arbres. Le plus souvent, celle-ci \u00e9tait am\u00e9lior\u00e9e. La cl\u00e9 du succ\u00e8s r\u00e9sidait toutefois dans une approche sur mesure et un dosage fin.<\/p>\n<p>Actuellement, il est possible de faire analyser son sol par un laboratoire agr\u00e9\u00e9 pour un avis concernant l\u2019utilisation de la poudre de roche, le type de poudre de roche et la dose \u00e0 appliquer.<\/p>\n<p>Au cours des prochaines ann\u00e9es, les recherches porteront sur l&rsquo;impact de ce ph\u00e9nom\u00e8ne sur la stabilit\u00e9 de la mati\u00e8re organique du sol (KU Leuven) et sur la diversit\u00e9 des ectomycorhizes (UAntwerpen).<\/p>","protected":false},"excerpt":{"rendered":"<p>L&rsquo;acidification des sols reste l&rsquo;un des principaux d\u00e9fis auxquels sont confront\u00e9es les for\u00eats europ\u00e9ennes. Les solutions conventionnelles telles que le chaulage peuvent rapidement augmenter le pH du sol, mais s\u2019accompagnent souvent d\u2019effets secondaires ind\u00e9sirables, tels que la perte de carbone et la perturbation du couvert v\u00e9g\u00e9tal. La poudre de roche, issue de roches volcaniques ou [&hellip;]<\/p>\n","protected":false},"featured_media":46897,"template":"","categories":[50],"class_list":["post-46896","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>La poudre de roche pour revitaliser les sols acides en douceur - 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\/la-poudre-de-roche-pour-revitaliser-les-sols-acides-en-douceur\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La poudre de roche pour revitaliser les sols acides en douceur - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"L&rsquo;acidification des sols reste l&rsquo;un des principaux d\u00e9fis auxquels sont confront\u00e9es les for\u00eats europ\u00e9ennes. 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