{"id":46177,"date":"2026-01-13T13:44:35","date_gmt":"2026-01-13T12:44:35","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=46177"},"modified":"2026-01-13T13:44:35","modified_gmt":"2026-01-13T12:44:35","slug":"enseignements-tires-de-la-derniere-infestation-de-scolytes-dans-les-peuplements-depiceas-en-belgique","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/enseignements-tires-de-la-derniere-infestation-de-scolytes-dans-les-peuplements-depiceas-en-belgique\/","title":{"rendered":"Enseignements tir\u00e9s de la derni\u00e8re infestation de scolytes dans les peuplements d\u2019\u00e9pic\u00e9as en Belgique"},"content":{"rendered":"<p>Depuis plusieurs ann\u00e9es, l\u2019\u00e9pic\u00e9a commun est particuli\u00e8rement touch\u00e9 par un d\u00e9p\u00e9rissement massif. La combinaison d\u2019\u00e9pisodes de s\u00e9cheresse et de pullulations de scolytes joue un r\u00f4le majeur dans ces mortalit\u00e9s \u00e0 grande \u00e9chelle, ce qui suscite des inqui\u00e9tudes vis-\u00e0-vis de la viabilit\u00e9 future de l\u2019esp\u00e8ce dans certaines r\u00e9gions. En Ardenne belge, o\u00f9 l\u2019\u00e9pic\u00e9a n\u2019est pas indig\u00e8ne, un d\u00e9p\u00e9rissement important a \u00e9t\u00e9 observ\u00e9 entre 2017 et 2022. Afin d\u2019anticiper les risques futurs, une analyse des facteurs expliquant les attaques de scolytes a \u00e9t\u00e9 men\u00e9e.<\/p>\n<p>De nombreuses donn\u00e9es cartographiques li\u00e9es au climat, aux conditions de croissance et \u00e0 la gestion foresti\u00e8re ont \u00e9t\u00e9 compil\u00e9es \u00e0 l\u2019aide de syst\u00e8mes d\u2019information g\u00e9ographique et crois\u00e9es avec des cartes de l\u2019aspect sanitaire de l\u2019\u00e9pic\u00e9a issues d\u2019images satellites. Des donn\u00e9es lidar ant\u00e9rieures aux infestations ont permis de caract\u00e9riser pr\u00e9cis\u00e9ment les peuplements. L\u2019ensemble de l\u2019\u00e9tude couvre environ 120 000 hectares de for\u00eats d\u2019\u00e9pic\u00e9as en Wallonie.<\/p>\n<p>L\u2019\u00e9tude a permis d\u2019identifier les principaux facteurs de d\u00e9p\u00e9rissement : les peuplements de hauteur dominante \u00e9lev\u00e9e, proches d\u2019anciens foyers de scolytes, situ\u00e9s \u00e0 basse altitude ou soumis \u00e0 un d\u00e9ficit hydrique estival croissant, sont plus fortement affect\u00e9s.<\/p>\n<p>Ces conclusions servent de base \u00e0 des recommandations de gestion visant \u00e0 limiter l\u2019impact futur des scolytes dans un contexte de changement climatique.<\/p>","protected":false},"excerpt":{"rendered":"<p>Depuis plusieurs ann\u00e9es, l\u2019\u00e9pic\u00e9a commun est particuli\u00e8rement touch\u00e9 par un d\u00e9p\u00e9rissement massif. La combinaison d\u2019\u00e9pisodes de s\u00e9cheresse et de pullulations de scolytes joue un r\u00f4le majeur dans ces mortalit\u00e9s \u00e0 grande \u00e9chelle, ce qui suscite des inqui\u00e9tudes vis-\u00e0-vis de la viabilit\u00e9 future de l\u2019esp\u00e8ce dans certaines r\u00e9gions. En Ardenne belge, o\u00f9 l\u2019\u00e9pic\u00e9a n\u2019est pas indig\u00e8ne, [&hellip;]<\/p>","protected":false},"featured_media":46165,"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>Enseignements tir\u00e9s de la derni\u00e8re infestation de scolytes dans les peuplements d\u2019\u00e9pic\u00e9as en Belgique - 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\/enseignements-tires-de-la-derniere-infestation-de-scolytes-dans-les-peuplements-depiceas-en-belgique\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enseignements tir\u00e9s de la derni\u00e8re infestation de scolytes dans les peuplements d\u2019\u00e9pic\u00e9as en Belgique - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Depuis plusieurs ann\u00e9es, l\u2019\u00e9pic\u00e9a commun est particuli\u00e8rement touch\u00e9 par un d\u00e9p\u00e9rissement massif. La combinaison d\u2019\u00e9pisodes de s\u00e9cheresse et de pullulations de scolytes joue un r\u00f4le majeur dans ces mortalit\u00e9s \u00e0 grande \u00e9chelle, ce qui suscite des inqui\u00e9tudes vis-\u00e0-vis de la viabilit\u00e9 future de l\u2019esp\u00e8ce dans certaines r\u00e9gions. 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