{"id":33440,"date":"2021-08-23T11:08:31","date_gmt":"2021-08-23T09:08:31","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=33440"},"modified":"2021-08-23T11:08:31","modified_gmt":"2021-08-23T09:08:31","slug":"nos-hetres-de-plus-en-plus-en-stresses","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/nos-hetres-de-plus-en-plus-en-stresses\/","title":{"rendered":"Nos h\u00eatres de plus en plus en stress\u00e9s"},"content":{"rendered":"<p class=\"text-build-content\" data-testid=\"Q6k2B10d5b\">Une \u00e9quipe scientifique suisse a d\u00e9crypt\u00e9 les r\u00e9actions du h\u00eatre face aux multiples s\u00e9cheresses de ces derni\u00e8res ann\u00e9es. Pourquoi certains h\u00eatres restent verts, alors que d\u2019autres prennent leurs couleurs d\u2019automne d\u00e8s le mois de juillet en cas de s\u00e9cheresse ? C\u2019est la r\u00e9serve en eau dans le sol et la profondeur d\u2019enracinement qui expliquent ces diff\u00e9rences.<\/p>\n<p class=\"text-build-content\" data-testid=\"Q6k2B10d5b\">Mais alors quelle est la strat\u00e9gie du h\u00eatre en cas de s\u00e9cheresses r\u00e9p\u00e9t\u00e9es ? L\u2019arbre commence par limiter l\u2019\u00e9vaporation au niveau de ses feuilles et interrompt la croissance du tronc. Ensuite, ses feuilles se d\u00e9colorent et tombent pr\u00e9matur\u00e9ment. Ces r\u00e9actions visent \u00e0 \u00e9conomiser l\u2019eau. Si ce n\u2019est pas suffisant, les parties les plus expos\u00e9es du houppier finissent par fl\u00e9trir.<\/p>\n<p class=\"text-build-content\" data-testid=\"Q6k2B10d5b\">Les auteurs de l\u2019\u00e9tude concluent que dans les prochaines d\u00e9cennies plus chaudes, le h\u00eatre laissera progressivement sa place \u00e0 des essences plus r\u00e9sistantes sur les sols secs. Il continuera \u00e0 prosp\u00e9rer sur les sols \u00e0 tr\u00e8s bonne capacit\u00e9 de stockage d\u2019eau.<\/p>","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe scientifique suisse a d\u00e9crypt\u00e9 les r\u00e9actions du h\u00eatre face aux multiples s\u00e9cheresses de ces derni\u00e8res ann\u00e9es. Pourquoi certains h\u00eatres restent verts, alors que d\u2019autres prennent leurs couleurs d\u2019automne d\u00e8s le mois de juillet en cas de s\u00e9cheresse ? C\u2019est la r\u00e9serve en eau dans le sol et la profondeur d\u2019enracinement qui expliquent ces [&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>Nos h\u00eatres de plus en plus en stress\u00e9s - 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\/nos-hetres-de-plus-en-plus-en-stresses\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nos h\u00eatres de plus en plus en stress\u00e9s - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Une \u00e9quipe scientifique suisse a d\u00e9crypt\u00e9 les r\u00e9actions du h\u00eatre face aux multiples s\u00e9cheresses de ces derni\u00e8res ann\u00e9es. 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