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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)
G3.1B3 - Niveau 5 : Pessières subalpines humides
Description
Sphagnum-rich Picea abies forests of the Alps, developed on more or less peaty, humid but not waterlogged substrates, with Listera cordata, Sphagnum acutifolium, Sphagnum quinquefarium, Sphagnum girgensohnii. Spruce forests developed in fens or swamps at the periphery of raised bogs or on waterlogged soils in forests are included in swamp forests of class G3, as unit G3.E5.
Taxons (Liens actifs si espèces présentes)
Listera cordata (L.) R.Br., 1813 ( Esp. caract. )
Picea abies (L.) H.Karst., 1881 ( Esp. caract. )
Sphagnum acutifolium Ehrh. ex Schrad. ( Esp. caract. )
Sphagnum girgensohnii Russow, 1865 ( Esp. caract. )
Sphagnum quinquefarium (Lindb. in Braithw.) Warnst., 1886 ( Esp. caract. )
Picea abies (L.) H.Karst., 1881 ( Esp. caract. )
Sphagnum acutifolium Ehrh. ex Schrad. ( Esp. caract. )
Sphagnum girgensohnii Russow, 1865 ( Esp. caract. )
Sphagnum quinquefarium (Lindb. in Braithw.) Warnst., 1886 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte
— nb espèces indicatrices par classe