{"id":392222,"date":"2026-07-13T20:14:59","date_gmt":"2026-07-13T19:14:59","guid":{"rendered":"https:\/\/realites.com.tn\/fr\/?p=392222"},"modified":"2026-07-13T20:14:59","modified_gmt":"2026-07-13T19:14:59","slug":"experimentation-dun-film-anti-evaporation-sur-un-lac-collinaire-tunisien","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/experimentation-dun-film-anti-evaporation-sur-un-lac-collinaire-tunisien\/","title":{"rendered":"\u00a0Exp\u00e9rimentation d\u2019un film anti-\u00e9vaporation sur un lac collinaire tunisien"},"content":{"rendered":"<p class=\"ds-markdown-paragraph\"><span class=\"\">Dans le cadre du projet TEC-Eau, financ\u00e9 par l\u2019Organisation des Nations unies pour l\u2019alimentation et l\u2019agriculture (FAO) et conduit en collaboration avec le minist\u00e8re de l\u2019Agriculture, des Ressources hydrauliques et de la P\u00eache, une exp\u00e9rimentation a \u00e9t\u00e9 engag\u00e9e sur le lac collinaire de Kamech. L\u2019objectif est de mesurer l\u2019efficacit\u00e9 d\u2019un film monomol\u00e9culaire destin\u00e9 \u00e0 limiter l\u2019\u00e9vaporation de l\u2019eau. Il s\u2019agit de la premi\u00e8re \u00e9tude de ce type men\u00e9e en conditions r\u00e9elles en Tunisie. Elle s\u2019inscrit dans une recherche de solutions techniques permettant d\u2019am\u00e9liorer durablement la disponibilit\u00e9 de la ressource hydrique, alors que le pays est confront\u00e9 aux cons\u00e9quences du r\u00e9chauffement climatique, \u00e0 la r\u00e9p\u00e9tition des \u00e9pisodes de s\u00e9cheresse et \u00e0 une demande en eau sans cesse croissante, indique un communiqu\u00e9 de la FAO publi\u00e9 ce lundi.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">L\u2019\u00e9tude b\u00e9n\u00e9ficie de l\u2019appui scientifique du Centre de Recherches et des Technologies des Eaux (CERTE) ainsi que d\u2019autres institutions nationales. Elle doit permettre d\u2019appr\u00e9cier les performances techniques, \u00e9conomiques et environnementales du dispositif, et de v\u00e9rifier son absence d\u2019impact sur la qualit\u00e9 de l\u2019eau, les \u00e9cosyst\u00e8mes aquatiques et la biodiversit\u00e9. Nabil Assaf, coordinateur de la FAO pour l\u2019Afrique du Nord et repr\u00e9sentant en Tunisie, a soulign\u00e9 que l\u2019initiative ne se limite pas \u00e0 l\u2019introduction d\u2019une technologie : elle vise \u00e0 l\u2019\u00e9valuer rigoureusement pour en d\u00e9terminer la pertinence et les modalit\u00e9s d\u2019application dans le contexte tunisien, conform\u00e9ment \u00e0 une approche fond\u00e9e sur la science et la coop\u00e9ration technique.<br \/>\n<\/span>La c\u00e9r\u00e9monie de lancement a r\u00e9uni les principales administrations nationales comp\u00e9tentes en mati\u00e8re de gestion de l\u2019eau, de recherche, de sant\u00e9, d\u2019environnement, d\u2019enseignement sup\u00e9rieur et de m\u00e9t\u00e9orologie, traduisant une volont\u00e9 de gouvernance int\u00e9gr\u00e9e des ressources hydriques. Le ministre de l\u2019Agriculture a rappel\u00e9 que chaque m\u00e8tre cube d\u2019eau \u00e9conomis\u00e9 constitue un apport pr\u00e9cieux pour l\u2019agriculture, l\u2019\u00e9conomie, l\u2019environnement et les g\u00e9n\u00e9rations futures, et que la r\u00e9duction des pertes par \u00e9vaporation est d\u00e9sormais inscrite comme une priorit\u00e9 dans la strat\u00e9gie nationale de l\u2019eau.<br \/>\nLa Tunisie mobilise actuellement plus de 90 % de ses ressources hydriques disponibles. Son infrastructure comprend 37 grands barrages, 234 barrages collinaires et 925 lacs collinaires. Les efforts portent d\u00e9sormais sur l\u2019optimisation du rendement de ces ouvrages. Les pertes par \u00e9vaporation posent un probl\u00e8me particulier dans les zones arides et semi-arides, o\u00f9 chaque volume d\u2019eau pr\u00e9serv\u00e9 renforce directement la capacit\u00e9 des territoires \u00e0 faire face aux al\u00e9as climatiques, la s\u00e9curit\u00e9 alimentaire et l\u2019adaptation au changement climatique. Les relev\u00e9s effectu\u00e9s le 12 juillet font \u00e9tat d\u2019une \u00e9vaporation quotidienne de 1,1 million de m\u00e8tres cubes sur l\u2019ensemble des grands barrages.<\/p>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">\u00c0 travers le projet TEC-Eau, la FAO met son expertise au service de l\u2019identification, de l\u2019adaptation et de la validation de solutions innovantes r\u00e9pondant aux besoins sp\u00e9cifiques du pays. Les r\u00e9sultats de cette exp\u00e9rimentation nourriront les travaux du comit\u00e9 national charg\u00e9 de la r\u00e9duction de l\u2019\u00e9vaporation et contribueront \u00e0 \u00e9clairer les futures politiques publiques en mati\u00e8re de gestion int\u00e9gr\u00e9e des ressources en eau, dans une perspective d\u2019agriculture plus r\u00e9siliente et de d\u00e9veloppement durable.<br \/>\n<strong>MBY<\/strong><br \/>\n<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans le cadre du projet TEC-Eau, financ\u00e9 par l\u2019Organisation des Nations unies pour l\u2019alimentation et l\u2019agriculture (FAO) et conduit en collaboration avec le minist\u00e8re de l\u2019Agriculture, des Ressources hydrauliques et&hellip;<\/p>\n","protected":false},"author":60,"featured_media":392223,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2508],"tags":[],"class_list":["post-392222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environnement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - 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