{"id":555530,"date":"2025-11-24T14:20:21","date_gmt":"2025-11-24T14:20:21","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/555530\/"},"modified":"2025-11-24T14:20:21","modified_gmt":"2025-11-24T14:20:21","slug":"un-premier-arrachage-test-du-myriophylle-heterophylle-mene-dans-la-saone","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/555530\/","title":{"rendered":"un premier arrachage-test du myriophylle h\u00e9t\u00e9rophylle men\u00e9 dans la Sa\u00f4ne"},"content":{"rendered":"<p itemprop=\"description\"><strong>Voies navigables de France (VNF) a men\u00e9, du 13 au 20 novembre, une op\u00e9ration in\u00e9dite dans l\u2019aire m\u00e9tropolitaine lyonnaise.<\/strong><\/p>\n<p>Il s&rsquo;agissait de l\u2019arrachage du myriophylle h\u00e9t\u00e9rophylle dans un bras mort de la Sa\u00f4ne, \u00e0 hauteur de la base nautique de Saint-Germain-au-Mont-d\u2019Or. Une premi\u00e8re intervention locale contre cette plante aquatique envahissante, dont la prolif\u00e9ration menace la biodiversit\u00e9 et les activit\u00e9s fluviales.<\/p>\n<p>L\u2019op\u00e9ration, d\u2019un montant total de 95 000 euros, a \u00e9t\u00e9 financ\u00e9e \u00e0 hauteur de 50 000 euros par la Banque Populaire Auvergne Rh\u00f4ne Alpes (BPAURA), dans le cadre d\u2019un m\u00e9c\u00e9nat d\u00e9di\u00e9 \u00e0 la pr\u00e9servation de la biodiversit\u00e9 du fleuve. Les travaux ont cibl\u00e9 une zone de 5 360 m2, comprenant une partie du bras mort et le port de la base de loisirs.<\/p>\n<p>Pour \u00e9viter toute dispersion de fragments dans la Sa\u00f4ne, des consignes d\u2019intervention strictes ont \u00e9t\u00e9 appliqu\u00e9es : arrachage depuis un ponton flottant, ramassage des morceaux par bateau, installation pr\u00e9alable d\u2019un barrage flottant. Une m\u00e9thode particuli\u00e8rement sensible alors que la plante peut cro\u00eetre jusqu\u2019\u00e0 30 centim\u00e8tres par semaine en p\u00e9riode estivale.<\/p>\n<p>Selon VNF, ce chantier constitue un \u00ab\u00a0premier pas d\u00e9cisif\u00a0\u00bb pour restaurer le milieu naturel et endiguer l\u2019expansion du myriophylle en aval. Sa progression r\u00e9cente avait recouvert \u00ab\u00a0la quasi-totalit\u00e9\u00a0\u00bb du fond du bras mort, \u00e9touffant flore et faune locales et perturbant les activit\u00e9s de la base nautique.<\/p>\n<p>Au-del\u00e0 de cet enjeu \u00e9cologique, l\u2019\u00e9tablissement public insiste sur la dimension exp\u00e9rimentale de ce chantier, destin\u00e9 \u00e0 renforcer son expertise nationale dans la lutte contre les esp\u00e8ces exotiques envahissantes, un fl\u00e9au qui perturbe \u00e9galement les ouvrages fluviaux et la navigation.<\/p>\n<p>L\u2019intervention doit permettre de redonner de l\u2019espace aux plantes locales et de s\u00e9curiser les activit\u00e9s nautiques.<\/p>\n","protected":false},"excerpt":{"rendered":"Voies navigables de France (VNF) a men\u00e9, du 13 au 20 novembre, une op\u00e9ration in\u00e9dite dans l\u2019aire m\u00e9tropolitaine&hellip;\n","protected":false},"author":2,"featured_media":555531,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1889],"tags":[1111,11,2813,2190,2430,1109,251,1112,2811,1777,674,118,1011,27,1922,1110,1114,2428,2810,12,241,316,25,2812,517,800],"class_list":{"0":"post-555530","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-lyon","8":"tag-actu","9":"tag-actualites","10":"tag-article","11":"tag-asvel","12":"tag-auvergne-rhone-alpes","13":"tag-breves","14":"tag-culture","15":"tag-depeches","16":"tag-economique","17":"tag-eu","18":"tag-europe","19":"tag-faits-divers","20":"tag-fr","21":"tag-france","22":"tag-info","23":"tag-informations","24":"tag-infos","25":"tag-lyon","26":"tag-lyonmag","27":"tag-news","28":"tag-ol","29":"tag-politique","30":"tag-republique-francaise","31":"tag-sociale","32":"tag-sport","33":"tag-transports"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115605119056370413","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/555530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=555530"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/555530\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/555531"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=555530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=555530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=555530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}