{"id":13062,"date":"2017-05-19T13:23:05","date_gmt":"2017-05-19T11:23:05","guid":{"rendered":"https:\/\/edu.ge.ch\/site\/edd\/?p=13062"},"modified":"2018-07-11T18:50:01","modified_gmt":"2018-07-11T16:50:01","slug":"surveiller-intrus-maintenir-biodiversite","status":"publish","type":"post","link":"https:\/\/edu.ge.ch\/site\/edd\/surveiller-intrus-maintenir-biodiversite\/","title":{"rendered":"Surveiller les intrus pour maintenir la biodiversit\u00e9"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 hundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-overflow:visible;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-1 fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">Les terrains pauvres sont souvent les plus riches<\/h1><span class=\"awb-title-spacer\"><\/span><div class=\"title-sep-container\"><div class=\"title-sep sep-double sep-solid\" style=\"border-color:#e0dede;\"><\/div><\/div><\/div><div class=\"fusion-text fusion-text-1\"><p>Cela semble paradoxal mais, dans nos r\u00e9gions, les terrains sauvages peu fertiles et plut\u00f4t secs offrent la plus grande biodiversit\u00e9, notamment en ce qui concerne les plantes et les insectes. Ce sont les prairies maigres, les coteaux non cultiv\u00e9s en plein soleil, et les talus caillouteux. <strong>Nature-\u00c9cho<\/strong> reproduit plusieurs milieux de ce type. On y a install\u00e9 uniquement des plantes annuelles, bisannuelles et vivaces qui poussent naturellement dans la r\u00e9gion (plantes indig\u00e8nes sauvages), parce qu\u2019elles favorisent la survie des papillons, des abeilles sauvages et bien d\u2019autres invert\u00e9br\u00e9s qui s\u2019y sont adapt\u00e9s depuis des si\u00e8cles.<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">Arracher les invasives et les ligneuses<\/h1><\/div><div class=\"fusion-text fusion-text-2\"><p>Cependant, pour maintenir la biodiversit\u00e9 et l\u2019int\u00e9grit\u00e9 du toit, il faut garder un \u00e6il attentif sur tout ce qui pousse. En effet, le vent, les fientes des oiseaux et les chaussures des visiteurs am\u00e8nent sans cesse de nouvelles graines, dont certaines sont malvenues. Ainsi, au moins une fois par an, il faut arracher trois types de plantes ind\u00e9sirables : Les plantes exotiques envahissantes : originaires de contr\u00e9es lointaines, elles n\u2019ont pas de \u00abpr\u00e9dateurs\u00bb et peuvent se d\u00e9velopper tr\u00e8s rapidement aux d\u00e9pens des autres plantes. Exemples: vergerette annuelle, vergerette du Canada, orpin b\u00e2tard&#8230;<\/p>\n<p>Les plantes ligneuses : ce sont les jeunes arbres et arbustes qui, en grandissant, peuvent endommager l\u2019\u00e9tanch\u00e9it\u00e9 du toit avec leurs racines. Exemples : ailante, \u00e9rable, robinier&#8230;<\/p>\n<p>Les adventices : originaires de la r\u00e9gion, ces plantes peuvent cr\u00e9er de grandes colonies lorsqu\u2019elles trouvent un terrain favorable \u2013 jusqu\u2019\u00e0 \u00e9liminer les autres plantes. Exemple: chiendent&#8230;<\/p>\n<p>Lors de cet entretien annuel, il faut aussi enlever les plantes qui g\u00eanent l\u2019\u00e9vacuation des eaux, afin d\u2019\u00e9viter que la toiture se transforme en pataugeoire.<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3779,"featured_media":13104,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[257,90],"tags":[102,304,302,303],"ecole-et-commune":[],"evenement":[],"class_list":["post-13062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nature-echo-2017","category-zoom","tag-biodiversite","tag-ligneuses","tag-nature-echo","tag-plantes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Surveiller les intrus pour maintenir la biodiversit\u00e9 - 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