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Biotope - Typologie Européenne EUNIS
G3.1B - Niveau 4 : Pessières subalpines des Alpes et des Carpates
Description
Picea abies forests of the lower subalpine level, and of anomalous stations in the montane level, of the outer, intermediate and inner Alps; in the latter, they are often in continuity with the montane spruce forests of unit G3.1C. The spruces, often stunted or columnar, are accompanied by an undergrowth of decidedly subalpine affinities. Picea abies forests of the lower subalpine level of the Carpathians.
Taxons (Liens actifs si espèces présentes)
G3.1B4 - Niveau 5 : Pessières subalpines xérophiles
Description
Picea abies forests on dry sunny slopes (adrets) of the northern and northwestern Alps, with Vaccinium vitis-idaea and a small admixture of Vaccinium myrtillus on siliceous soils over sandstones and carboniferous schists, with Arctostaphylos uva-ursi, Polygala chamaebuxus, Carex humilis on lustrous schists, with berberis vulgaris, Valeriana montana, Valeriana tripteris on stabilised calcareous screes.
Taxons (Liens actifs si espèces présentes)
Berberis vulgaris L., 1753 ( Esp. caract. )
Picea abies (L.) H.Karst., 1881 ( Esp. caract. )
Polygala chamaebuxus L., 1753 ( Esp. caract. )
Vaccinium myrtillus L., 1753 ( Esp. caract. )
Vaccinium vitis-idaea L., 1753 ( Esp. caract. )
Valeriana montana L., 1753 ( Esp. caract. )
Valeriana tripteris L., 1753 ( Esp. caract. )
Picea abies (L.) H.Karst., 1881 ( Esp. caract. )
Polygala chamaebuxus L., 1753 ( Esp. caract. )
Vaccinium myrtillus L., 1753 ( Esp. caract. )
Vaccinium vitis-idaea L., 1753 ( Esp. caract. )
Valeriana montana L., 1753 ( Esp. caract. )
Valeriana tripteris 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