File:Étang, tourbières et boulaies de Machais - Cliché Vosagus 27-05-2008.JPG

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Français : Le cirque de Machais abrite une des rares tourbières lacustres d'Europe occidentale encore presque intactes.

Le radeau tourbeux (Schwingrasenmoor) occupe la partie sud-est de l'Étang de Machais. Le cliché montre une mosaïque de mardelles à Scheuchzéries des marais et de buttes flottantes couvertes de banquettes de sphaignes. L'ensemble est entouré par des lambeaux de tourbières hautes piquées d'Andromèded à feuilles de Polium (Pseudohochmoore), des tourbières de pente (Hangmoore) et des boulaies sur tourbe. Cette dépression d'origine glaciaire est encore active en termes de géomorphologie : retournement périodique d’îlots flottants de tourbe du fait de la méthanisation et rehaussement sur plusieurs siècles du plan d'eau quand l'effluent (Goutte de Machais) est barré en aval par l'activité d'un cône de déjection descendu de la Walsche. Réserve naturelle gérée par le Parc naturel régional des Ballons des Vosges. Attention, un arrêté interdit la fréquentation de la tourbière centrale.

Cliché Vosagus 27-05-2008
Deutsch: Machais mit Karsee, Schwingrasenmoor und Birkenwald - Hoch Vogesen, Frankreich
English: Lake and quagmire of Machais - Highest Vosges mountains, France
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Author Vosagus

Réserve Naturelle de l'Étang de Machais - commune de LA BRESSE - Département des Vosges - Région Lorraine - FRANCE

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current20:51, 30 May 2015Thumbnail for version as of 20:51, 30 May 20153,872 × 2,592 (3.94 MB)Vosagus (talk | contribs)User created page with UploadWizard

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