{"id":34552,"date":"2021-09-10T11:45:59","date_gmt":"2021-09-10T09:45:59","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/un-cocktail-explosif-qui-decime-nos-forets\/"},"modified":"2021-09-10T11:45:59","modified_gmt":"2021-09-10T09:45:59","slug":"un-cocktail-explosif-qui-decime-nos-forets","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/un-cocktail-explosif-qui-decime-nos-forets\/","title":{"rendered":"Un cocktail explosif qui d\u00e9cime nos for\u00eats"},"content":{"rendered":"<p>L\u2019\u00e9quation est simple : scolytes + chaleur + essences sensibles + arbres stress\u00e9s = d\u00e9g\u00e2ts importants. Cet article est consacr\u00e9 aux moyens de pr\u00e9vention pour adapter les for\u00eats aux changements climatiques. En effet, l\u2019avenir des for\u00eats se pr\u00e9pare d\u00e8s aujourd\u2019hui. Les scolytes sont des r\u00e9gulateurs naturels de l\u2019\u00e9cosyst\u00e8me forestier mais ces derniers, en trop grand nombre, peuvent causer des d\u00e9g\u00e2ts irr\u00e9versibles. Les chaleurs ainsi que les s\u00e9cheresses sont des facteurs de d\u00e9clenchement des \u00e9pid\u00e9mies. La sensibilit\u00e9 des essences, notamment r\u00e9sineuses, et le stress hydrique sont deux autres facteurs renfor\u00e7ant la propagation de scolytes.<br \/>\nPour limiter les risques, plusieurs m\u00e9thodes de pr\u00e9ventions peuvent \u00eatre envisag\u00e9es. Une des premi\u00e8res approches est de favoriser la pr\u00e9sence des pr\u00e9dateurs naturels des scolytes. Tr\u00e8s souvent ces derniers sont \u00e9galement des insectes. Un milieu riche en biodiversit\u00e9 contribue \u00e0 leur venue. L\u2019alternance des essences ainsi que l\u2019implantation de bandes de feuillus cloisonnant les peuplements de r\u00e9sineux sont d\u2019autres moyens de lutte contre ces ravageurs. Le sylviculteur ne peut r\u00e9guler l\u2019augmentation des temp\u00e9ratures mais peut jouer sur les optimums \u00e9cologiques des essences et appliquer une sylviculture limitant le stress hydrique.<br \/>\nUne autre pr\u00e9caution applicable pour l\u2019avenir est la pratique d\u2019une sylviculture dynamique avec de plus faibles densit\u00e9s de plantation et des \u00e9claircies fortes et pr\u00e9coces avant 12 \u00e0 15 m\u00e8tres de hauteur. Elle aboutit en outre \u00e0 la r\u00e9duction de la dur\u00e9e de r\u00e9volution, ce qui peut, dans une certaine mesure, limiter leur exposition au risque.<br \/>\nLes solutions sont donc multiples mais chaque solution pr\u00e9sente ses avantages et ses inconv\u00e9nients. Une adaptation de la sylviculture d\u2019aujourd\u2019hui est donc indispensable pour faire face aux changements climatiques.<br \/>\nM\u00e9li\u00e8res M.-A., Riou-Nivert P. (2019). Scolytes, chablis, canicules et changement climatique : un m\u00e9lange explosif ! For\u00eat-entreprise 249 : 6-11.<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u2019\u00e9quation est simple : scolytes + chaleur + essences sensibles + arbres stress\u00e9s = d\u00e9g\u00e2ts importants. Cet article est consacr\u00e9 aux moyens de pr\u00e9vention pour adapter les for\u00eats aux changements climatiques. En effet, l\u2019avenir des for\u00eats se pr\u00e9pare d\u00e8s aujourd\u2019hui. Les scolytes sont des r\u00e9gulateurs naturels de l\u2019\u00e9cosyst\u00e8me forestier mais ces derniers, en trop grand [&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>Un cocktail explosif qui d\u00e9cime nos for\u00eats - 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\/un-cocktail-explosif-qui-decime-nos-forets\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un cocktail explosif qui d\u00e9cime nos for\u00eats - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"L\u2019\u00e9quation est simple : scolytes + chaleur + essences sensibles + arbres stress\u00e9s = d\u00e9g\u00e2ts importants. Cet article est consacr\u00e9 aux moyens de pr\u00e9vention pour adapter les for\u00eats aux changements climatiques. En effet, l\u2019avenir des for\u00eats se pr\u00e9pare d\u00e8s aujourd\u2019hui. 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