File:Petit barrage Castor fiber Ardennes 0010.JPG

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Français : Petit barrage de Castor fiber (dans les Ardennes françaises), dans une zone humide à molinies bleues (Molinia caerulea), saules et bouleaux. Les petits barrages sont surtout faits dans ce cas de tourbe et feuilles mortes, puis consolidés de branches au fur et à mesure de leur élévation. Après quelques mois, ces barrages se végétalisent, les racines des végétaux contribuent alors à les consolider. Ils filtrent l'eau et en retiennent une grande partie, limitiant les sécheresses en amont et les inondations en aval.
English: Small dam Castor fiber (in French Ardennes) in a wetland Blue molinies ( Molinia caerulea, willow and birch The. small dams are mostly made in the case of peat and dead leaves, branches and consolidated as and when they rise. After a few months, these dams végétalisent, plant roots while helping to consolidate. They filter the water and retain a large part limitiant droughts upstream and downstream flooding.
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current14:22, 31 March 2014Thumbnail for version as of 14:22, 31 March 20144,928 × 3,264 (3.16 MB)Lamiot (talk | contribs)User created page with UploadWizard

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