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Biotope - Typologie Européenne EUNIS
D2.3 - Niveau 3 : Tourbières de transition et tourbières tremblantes
Description
Incompletely terrestrialized wetlands occupied by peat-forming vegetation with acid groundwater or (for vegetation rafts) acid underlying pool or lake water. Characteristic species are Calla palustris, Carex chordorrhiza, Carex diandra, Carex heleonastes, Carex lasiocarpa, Carex limosa, Carex rostrata, Menyanthes trifoliata, Potentilla palustris, Rhynchospora alba, Scheuchzeria palustris. Included are rafts of Sphagnum and Eriophorum (D2.38) and quaking rafts of Molinia caerulea (D2.3D). Excluded are stands of vegetation fringing water bodies (C3.2) unless the vegetation raft is sufficiently extensive to count as a habitat in its own right.
Taxons (Liens actifs si espèces présentes)
D2.3C - Niveau 4 : Tourbières tremblantes à Eriophorum vaginatum
Description
Transition mire communities in which the grass layer is dominated by Eriophorum vaginatum on a thick mat of Sphagnum recurvum, with Polytrichum commune often forming a second moss layer. Associated plants include Carex nigra and Agrostis canina. Typical raised bog plants are few, often limited to Carex pauciflora and Vaccinium oxycoccos.
Taxons (Liens actifs si espèces présentes)
Agrostis canina L., 1753 [nom. et typ. cons.] ( Esp. caract. )
Carex nigra All., 1785 ( Esp. caract. )
Carex pauciflora Lightf., 1777 ( Esp. caract. )
Eriophorum vaginatum L., 1753 ( Esp. caract. )
Polytrichum commune Hedw., 1801 ( Esp. caract. )
Sphagnum recurvum P.Beauv., 1805 ( Esp. caract. )
Vaccinium oxycoccos L., 1753 ( Esp. caract. )
Carex nigra All., 1785 ( Esp. caract. )
Carex pauciflora Lightf., 1777 ( Esp. caract. )
Eriophorum vaginatum L., 1753 ( Esp. caract. )
Polytrichum commune Hedw., 1801 ( Esp. caract. )
Sphagnum recurvum P.Beauv., 1805 ( Esp. caract. )
Vaccinium oxycoccos L., 1753 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte
— nb espèces indicatrices par classe
Humidité
Réaction du sol (pH)
Nutriments
Lumière
Matière organique
Granulométrie
Salinité