⌘K
Biotope - Typologie Européenne EUNIS
G1.8 - Niveau 3 : Boisements acidophiles dominés par Quercus
Description
Forests of Quercus robur or Quercus petraea on acid soils with an herb layer mostly constituted by the ecological groups of Deschampsia flexuosa, Vaccinium myrtillus, Pteridium aquilinum, Lonicera periclymenum, Holcus mollis, and of Maianthemum bifolium, Convallaria majalis, Hieracium sabaudum, Hypericum pulchrum, Luzula pilosa, and the mosses Polytrichum formosum and Leucobryum glaucum.
Taxons (Liens actifs si espèces présentes)
G1.81 - Niveau 4 : Bois atlantiques de Quercus robur et Betula
Description
Acidophilous forests of the Baltic-North Sea plain, composed of Quercus robur, Betula pendula and Betula pubescens, often mixed with Sorbus aucuparia and Populus tremula, on very oligotrophic, often sandy and podsolised or hydromorphic soils; the shrub layer, poorly developed, includes Frangula alnus; the herb layer, formed by the group of Deschampsia flexuosa, always includes Molinia caerulea and is often invaded by bracken. Forests of this type often prevail in the northern European plain, from Jutland to Flanders; they occupy more limited edaphic enclaves in the Ardennes and the middle and upper Rhenish ranges, in northwestern France, Normandy, Brittany, the Paris basin, the Morvan and Great Britain. East of the Elbe, in the Baltic lowlands, they are represented, east to Mecklenburg, by stands transitional, to a greater or lesser extent, to those of unit G4.71.
Taxons (Liens actifs si espèces présentes)
Betula pendula Roth, 1788 ( Esp. caract. )
Betula pubescens Ehrh., 1791 ( Esp. caract. )
Deschampsia flexuosa (L.) Trin., 1836 ( Esp. caract. )
Frangula alnus Mill., 1768 ( Esp. caract. )
Molinia caerulea (L.) Moench, 1794 ( Esp. caract. )
Populus tremula L., 1753 ( Esp. caract. )
Quercus robur L., 1753 ( Esp. caract. )
Sorbus aucuparia L., 1753 ( Esp. caract. )
Betula pubescens Ehrh., 1791 ( Esp. caract. )
Deschampsia flexuosa (L.) Trin., 1836 ( Esp. caract. )
Frangula alnus Mill., 1768 ( Esp. caract. )
Molinia caerulea (L.) Moench, 1794 ( Esp. caract. )
Populus tremula L., 1753 ( Esp. caract. )
Quercus robur L., 1753 ( Esp. caract. )
Sorbus aucuparia 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