{"id":19951,"date":"2023-12-21T17:26:33","date_gmt":"2023-12-21T16:26:33","guid":{"rendered":"https:\/\/nationalpark.08eins-preview.ch\/fr\/?page_id=19951"},"modified":"2024-01-11T09:59:00","modified_gmt":"2024-01-11T08:59:00","slug":"eaux-alpines","status":"publish","type":"page","link":"https:\/\/nationalpark.ch\/fr\/rechercher\/eaux-alpines\/","title":{"rendered":"Eaux alpines"},"content":{"rendered":"

Macun \u2013 des lacs de montagne vivants<\/h3>\n

Depuis le 1er ao\u00fbt 2000, Macun et ses lacs situ\u00e9s \u00e0 2500 m appartiennent au Parc National.
\nDepuis lors, ces lacs font l\u2019objet de recherches r\u00e9guli\u00e8res, bas\u00e9es sur des \u00e9tudes ant\u00e9rieures. L\u2019\u00e9volution de la qualit\u00e9 des eaux des lacs y est \u00e9tudi\u00e9e. L\u2019augmentation attendue du taux d\u2019acidit\u00e9 des lacs, due \u00e0 la roche cristalline sur laquelle ils reposent, ne s\u2019est pas encore av\u00e9r\u00e9e. Il est \u00e9galement d\u2019int\u00e9r\u00eat d\u2019observer si les truites fario et les ombles du Canada, introduits par des p\u00eacheurs, peuvent s\u2019y maintenir.<\/p>\n

Sp\u00f6l \u2013 une dynamique malgr\u00e9 un d\u00e9bit r\u00e9siduel<\/h3>\n

Le milieu du Sp\u00f6l deviendrait-il plus naturel si l’on provoquait des crues artificielles contr\u00f4l\u00e9es?
\nLe Sp\u00f6l est devenu, depuis la construction de la centrale \u00e9lectrique de l’Engadine en 1970, un ruisseau \u00e0 d\u00e9bit r\u00e9siduel. Il ne ressemble plus \u00e0 un torrent de haute montagne avec ses caract\u00e9ristiques. Un changement de distribution du d\u00e9bit r\u00e9siduel ainsi que de petites crues artificielles engendrent depuis 2000 une meilleure dynamique et revalorisent l\u2019\u00e9cologie du Sp\u00f6l. Le courant emporte les s\u00e9diments \u00e0 grain fin et favorise les organismes vivants adapt\u00e9s \u00e0 des d\u00e9bits plus \u00e9lev\u00e9s. Tout comme dans un torrent naturel de montagne.
\nL\u2019\u00e9tat des eaux du Sp\u00f6l est r\u00e9guli\u00e8rement contr\u00f4l\u00e9 avant et apr\u00e8s les crues, ainsi que l\u2019effectif des poissons.<\/p>\n","protected":false},"excerpt":{"rendered":"

Macun \u2013 des lacs de montagne vivants
\nDepuis le 1er ao\u00fbt 2000, Macun et ses lacs situ\u00e9s \u00e0 2500 m appartiennent au Parc National.
\nDepuis lors, ces lacs font l\u2019objet de recherches …<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":13459,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[45],"tags":[],"class_list":["post-19951","page","type-page","status-publish","hentry","category-violet"],"acf":[],"yoast_head":"\nEaux alpines - Parc National Suisse<\/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:\/\/nationalpark.ch\/fr\/rechercher\/eaux-alpines\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eaux alpines - Parc National Suisse\" \/>\n<meta property=\"og:description\" content=\"Macun \u2013 des lacs de montagne vivants Depuis le 1er ao\u00fbt 2000, Macun et ses lacs situ\u00e9s \u00e0 2500 m appartiennent au Parc National. Depuis lors, ces lacs font l\u2019objet de recherches ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nationalpark.ch\/fr\/rechercher\/eaux-alpines\/\" \/>\n<meta property=\"og:site_name\" content=\"Parc National Suisse\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-11T08:59:00+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/nationalpark.ch\/fr\/wp-content\/uploads\/sites\/6\/2023\/12\/SNP_LO_20120801_13287-aspect-ratio-2000-1000.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/eaux-alpines\\\/\",\"url\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/eaux-alpines\\\/\",\"name\":\"Eaux alpines - Parc National Suisse\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/#website\"},\"datePublished\":\"2023-12-21T16:26:33+00:00\",\"dateModified\":\"2024-01-11T08:59:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/eaux-alpines\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/eaux-alpines\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/eaux-alpines\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sciences\",\"item\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/rechercher\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Eaux alpines\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/\",\"name\":\"Parc National Suisse\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/nationalpark.ch\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Eaux alpines - Parc National Suisse","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nationalpark.ch\/fr\/rechercher\/eaux-alpines\/","og_locale":"fr_FR","og_type":"article","og_title":"Eaux alpines - Parc National Suisse","og_description":"Macun \u2013 des lacs de montagne vivants Depuis le 1er ao\u00fbt 2000, Macun et ses lacs situ\u00e9s \u00e0 2500 m appartiennent au Parc National. 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