Biotope - Typologie Européenne EUNIS

G3.1BNiveau 4Pessières subalpines des Alpes et des Carpates
↑ Niveau supérieur
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 associés
G3.1B1Niveau 5Pessières à Airelles
Habitat sélectionné
Description
Mostly acidophilous, mesophile, subalpine Picea abies forests of the outer, intermediate and inner Alps, with Oxalis acetosella, Vaccinium vitis-idaea, Vaccinium myrtillus, Calamagrostis villosa and the moss Hylocomium splendens.
Taxons associés
Calamagrostis villosa (Chaix) J.F.Gmel., 1791Esp. caract.Hylocomium splendens (Hedw.) Schimp., 1852Esp. caract.Oxalis acetosella L., 1753Esp. caract.Picea abies (L.) H.Karst., 1881Esp. caract.Vaccinium myrtillus L., 1753Esp. caract.Vaccinium vitis-idaea L., 1753Esp. caract.
Analyse écologique 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