{"id":59408,"date":"2026-01-27T12:06:34","date_gmt":"2026-01-27T11:06:34","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/?post_type=piloto-proyecto-27&#038;p=59408"},"modified":"2026-01-27T13:00:34","modified_gmt":"2026-01-27T12:00:34","slug":"essai-pilote-an-gel-sudoe-irta-lleida","status":"publish","type":"piloto-proyecto-27","link":"https:\/\/interreg-sudoe.eu\/fr\/piloto-proyecto-27\/essai-pilote-an-gel-sudoe-irta-lleida\/","title":{"rendered":"Essai pilote An-Gel Sudoe \u2013 IRTA (Lleida)"},"content":{"rendered":"<h3 data-start=\"172\" data-end=\"188\">Introduction<\/h3>\n<p data-start=\"190\" data-end=\"598\">Les gels printaniers repr\u00e9sentent l\u2019un des principaux risques climatiques pour l\u2019agriculture, un ph\u00e9nom\u00e8ne qui s\u2019est intensifi\u00e9 ces derni\u00e8res ann\u00e9es en raison du changement climatique. L\u2019augmentation des temp\u00e9ratures avance des phases cl\u00e9s du d\u00e9veloppement v\u00e9g\u00e9tal, telles que la floraison, augmentant la vuln\u00e9rabilit\u00e9 des cultures aux \u00e9pisodes de froid tardif et g\u00e9n\u00e9rant d\u2019importantes pertes de production.<\/p>\n<h3 data-start=\"600\" data-end=\"630\">Objectif de l\u2019essai pilote<\/h3>\n<p data-start=\"632\" data-end=\"1029\">Cet essai pilote a pour objectif d\u2019\u00e9valuer l\u2019impact de diff\u00e9rentes techniques de mitigation des gels dans des plantations de pommiers et de vignes, en analysant leur effet sur la temp\u00e9rature de l\u2019air et de la surface des cultures, ainsi que sur le bilan \u00e9nerg\u00e9tique du syst\u00e8me sol\u2013plante\u2013atmosph\u00e8re. Pour ce faire, des technologies de capteurs avanc\u00e9s et de t\u00e9l\u00e9d\u00e9tection thermique sont utilis\u00e9es.<\/p>\n<h3 data-start=\"1031\" data-end=\"1059\">Activit\u00e9s mises en \u0153uvre<\/h3>\n<p data-start=\"1061\" data-end=\"1110\">Les principales activit\u00e9s du pilote comprennent :<\/p>\n<ul data-start=\"1112\" data-end=\"1460\">\n<li data-start=\"1112\" data-end=\"1198\">\n<p data-start=\"1114\" data-end=\"1198\">l\u2019installation et le suivi de capteurs pour le suivi continu du bilan \u00e9nerg\u00e9tique,<\/p>\n<\/li>\n<li data-start=\"1199\" data-end=\"1297\">\n<p data-start=\"1201\" data-end=\"1297\">le d\u00e9veloppement et la mise en \u0153uvre du mod\u00e8le Bowen-ratio pour l\u2019analyse des flux de chaleur,<\/p>\n<\/li>\n<li data-start=\"1298\" data-end=\"1358\">\n<p data-start=\"1300\" data-end=\"1358\">l\u2019analyse des \u00e9pisodes de gels hivernaux et printaniers,<\/p>\n<\/li>\n<li data-start=\"1359\" data-end=\"1460\">\n<p data-start=\"1361\" data-end=\"1460\">l\u2019acquisition d\u2019images thermiques \u00e0 haute r\u00e9solution au moyen de vols de drones lors de gels r\u00e9els.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1462\" data-end=\"1488\">Site de l\u2019essai pilote<\/h3>\n<p data-start=\"1490\" data-end=\"1774\">L\u2019essai est men\u00e9 dans deux localisations de la province de Lleida : la station exp\u00e9rimentale de l\u2019IRTA \u00e0 Mollerussa, dans un verger de pommiers sous filet, et un vignoble de Bodegas Raimat, vari\u00e9t\u00e9 Tempranillo, avec diff\u00e9rents traitements de gestion du sol et strat\u00e9gies d\u2019irrigation.<\/p>\n<h3 data-start=\"1776\" data-end=\"1803\">R\u00e9sultats pr\u00e9liminaires<\/h3>\n<p data-start=\"1805\" data-end=\"2248\">Au cours de l\u2019hiver 2025, des \u00e9pisodes de gel ont \u00e9t\u00e9 enregistr\u00e9s avec des temp\u00e9ratures atteignant jusqu\u2019\u00e0 \u22124 \u00b0C. Les vols thermiques r\u00e9alis\u00e9s ont permis d\u2019identifier des diff\u00e9rences significatives de temp\u00e9rature entre les zones avec et sans couverture v\u00e9g\u00e9tale, ainsi que dans les zones o\u00f9 des sources de chaleur ont \u00e9t\u00e9 appliqu\u00e9es de mani\u00e8re ponctuelle, fournissant des informations cl\u00e9s pour am\u00e9liorer les strat\u00e9gies de mitigation des gels.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Essai pilote du projet An-Gel Sudoe visant \u00e0 \u00e9valuer des techniques de mitigation des gels printaniers dans des vergers de pommiers et des vignobles. Le pilote analyse le comportement thermique des cultures et le bilan \u00e9nerg\u00e9tique sol\u2013plante\u2013atmosph\u00e8re \u00e0 l\u2019aide de technologies de capteurs avanc\u00e9es et de la t\u00e9l\u00e9d\u00e9tection thermique, dans le but de produire des connaissances appliqu\u00e9es permettant de r\u00e9duire l\u2019impact des gels dans des conditions r\u00e9elles de terrain.<\/p>\n","protected":false},"author":6548,"featured_media":0,"template":"","meta":{"_acf_changed":false,"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"convocatoria-proyecto-27":[],"estado-proyecto-27":[],"objetivo-especifico-proyecto-27":[],"pais-proyecto-27":[],"periodo":[],"prioridad-proyecto-27":[],"publico-objetivo":[],"region-proyecto-27":[],"tematica-proyecto-27":[],"class_list":["post-59408","piloto-proyecto-27","type-piloto-proyecto-27","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Essai pilote An-Gel Sudoe \u2013 IRTA (Lleida) - Interreg Sudoe<\/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:\/\/interreg-sudoe.eu\/fr\/piloto-proyecto-27\/essai-pilote-an-gel-sudoe-irta-lleida\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Essai pilote An-Gel Sudoe \u2013 IRTA (Lleida) - Interreg Sudoe\" \/>\n<meta property=\"og:description\" content=\"Essai pilote du projet An-Gel Sudoe visant \u00e0 \u00e9valuer des techniques de mitigation des gels printaniers dans des vergers de pommiers et des vignobles. 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