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Biotopes & milieux

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)
Aeonium sp., Carex limosa L., 1753, Carex sp., Ensis sp., Greenovia sp., Hypnum sp., Maytenus sp., Menyanthes trifoliata L., 1753, Micromeria sp., Nephtys sp., Periploca sp., Polychaeta sp., Salix sp., Tortula sp.,
D2.34 - Niveau 4 : Gazons à Carex limosa
Description
Transition mire communities of the Palaearctic domaine dominated by Carex limosa, with brown mosses and sphagna, forming low floating or quaking swards.
Taxons (Liens actifs si espèces présentes)
Carex limosa 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