{"id":46302,"date":"2026-03-11T17:38:57","date_gmt":"2026-03-11T16:38:57","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=resume-foret-mail&#038;p=46302"},"modified":"2026-03-12T08:38:51","modified_gmt":"2026-03-12T07:38:51","slug":"en-suisse-des-drones-pour-surveiller-la-sante-des-forets","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/en-suisse-des-drones-pour-surveiller-la-sante-des-forets\/","title":{"rendered":"En Suisse : des drones pour surveiller la sant\u00e9 des for\u00eats"},"content":{"rendered":"<p>Des scientifiques suisses ont \u00e9tudi\u00e9 la r\u00e9action d\u2019essences indig\u00e8nes aux changements climatiques au moyen d\u2019images prises par des dr\u00f4nes. \u00c0 l\u2019aide de cam\u00e9ras sp\u00e9ciales, ils ont identifi\u00e9 des diff\u00e9rences propres \u00e0 chacune des sept essences \u00e9tudi\u00e9es (\u00e9rable sycomore, ch\u00eane, \u00e9pic\u00e9a, charme, h\u00eatre commun, pin sylvestre et sapin) dans la gestion de l\u2019ensoleillement excessif ainsi que dans la d\u00e9coloration et la d\u00e9foliation des houppiers.<\/p>\n<p>Les ch\u00eanes, par exemple, se remettent plus rapidement d\u2019une journ\u00e9e chaude que d\u2019autres essences et les conif\u00e8res ne montrent des signes de stress hydrique qu\u2019avec un certain retard, avant de d\u00e9p\u00e9rir soudainement. Les cam\u00e9ras utilis\u00e9es sont capables de d\u00e9tecter un pigment particulier produit par les arbres pour prot\u00e9ger leurs feuilles d\u2019un ensoleillement excessif en p\u00e9riode de s\u00e9cheresse. Ce pigment permet de d\u00e9tecter le stress \u00e0 court terme. La d\u00e9coloration et la chute des feuilles, qui peuvent arriver par la suite, sont aussi d\u00e9tect\u00e9es et analys\u00e9es.<\/p>\n<p>Pouvoir d\u00e9tecter depuis les airs les p\u00e9nuries d\u2019eau aigu\u00ebs et prolong\u00e9es pourrait aider \u00e0 surveiller les for\u00eats \u00e0 grande \u00e9chelle et d\u00e9terminer quelles essences s\u2019adaptent le mieux au changement climatique.<\/p>","protected":false},"excerpt":{"rendered":"<p>Des scientifiques suisses ont \u00e9tudi\u00e9 la r\u00e9action d\u2019essences indig\u00e8nes aux changements climatiques au moyen d\u2019images prises par des dr\u00f4nes. \u00c0 l\u2019aide de cam\u00e9ras sp\u00e9ciales, ils ont identifi\u00e9 des diff\u00e9rences propres \u00e0 chacune des sept essences \u00e9tudi\u00e9es (\u00e9rable sycomore, ch\u00eane, \u00e9pic\u00e9a, charme, h\u00eatre commun, pin sylvestre et sapin) dans la gestion de l\u2019ensoleillement excessif ainsi que [&hellip;]<\/p>","protected":false},"featured_media":46310,"template":"","categories":[50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - 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