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Biotope - Typologie Européenne EUNIS
E4.31 - Niveau 4 : Gazons alpiens à Nardus stricta et communautés apparentées
Description
Closed grasslands of deep, acid soils of the Alps, the Carpathians, the Pyrenees, the northern Apennines, the Jura and the higher Hercynian ranges, the northern and central Dinarides, developed mostly and abundantly in the subalpine level and included in the alliance Nardion, dominated or co-dominated by Nardus stricta, Festuca eskia, Festuca nigrescens, Festuca rubra, Alopecurus gerardii, Bellardiochloa violacea (Poa violacea), Carex sempervirens, Anthoxanthum odoratum, Hieracium alpinum, Trommsdorfia uniflora, Potentilla aurea. Similar Nardus stricta grasslands of the Moesian region of the Balkan peninsula, distributed at high elevations of the Balkan Range, the Rhodope Mountains, the Moeso-Macedonian mountains and the Pelagonides, as southern extensions of the Alpigenous communities or as grazing-induced facies of the more varied communities of unit E4.39.
Taxons (Liens actifs si espèces présentes)
E4.311 - Niveau 5 : Gazons pyrénéo-alpins mésophiles à Nard raide
Description
Subalpine and lower alpine mesophile grasslands dominated by, or rich in, Nardus stricta, of the Alps, the Pyrenees and, very locally, the Central Massif, the Jura and the northern Apennines; for the most part, they are heavily grazed grasslands with much reduced species diversity and overwhelming dominance of mat-grass.
Taxons (Liens actifs si espèces présentes)
Nardus stricta 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