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Biotope - Typologie Européenne EUNIS
F9.2 - Niveau 3 : Saussaies marécageuses et fourrés des bas-marais à Salix
Description
Low woods and scrubs colonizing fens, marshy floodplains and fringes of lakes and ponds, dominated by large or medium sized shrubby willows, generally Salix aurita, Salix cinerea, Salix atrocinerea, Salix pentandra, alone or in association with Frangula alnus, Rhamnus catharticus, Alnus glutinosa or Betula pubescens, any of which may dominate the upper canopy. In boreal regions and on cold subboreal plateaux, small shrubs may dominate, e.g. dwarf Salix spp. associated with Betula humilis or Betula nana. Excludes boreal and subalpine lakeside scrub on well drained soils (F2).
Taxons (Liens actifs si espèces présentes)
F9.21 - Niveau 4 : Saussaies marécageuses à Saule cendré
Description
Mesotrophic or eutrophic low woods and scrubs colonizing fens, marshy floodplains and fringes of lakes and ponds, dominated by Salix cinerea, Salix pentandra, Salix aurita or, sometimes, Salix atrocinerea, alone or in association with Frangula alnus, Rhamnus catharticus, Alnus glutinosa or Betula pubescens, any of which may, at times, dominate the upper canopy. Phragmites australis, Carex elata, Scirpus sylvaticus, Menyanthes trifoliata are typical for the herb layer.
Taxons (Liens actifs si espèces présentes)
Alnus glutinosa (L.) Gaertn., 1790 ( Esp. caract. )
Betula pubescens Ehrh., 1791 ( Esp. caract. )
Carex elata All., 1785 ( Esp. caract. )
Frangula alnus Mill., 1768 ( Esp. caract. )
Menyanthes trifoliata L., 1753 ( Esp. caract. )
Phragmites australis (Cav.) Trin. ex Steud., 1840 ( Esp. caract. )
Rhamnus cathartica L., 1753 ( Esp. caract. )
Salix atrocinerea Brot., 1804 ( Esp. caract. )
Salix aurita L., 1753 ( Esp. caract. )
Salix cinerea L., 1753 ( Esp. caract. )
Salix pentandra L., 1753 ( Esp. caract. )
Scirpus sylvaticus L., 1753 ( Esp. caract. )
Betula pubescens Ehrh., 1791 ( Esp. caract. )
Carex elata All., 1785 ( Esp. caract. )
Frangula alnus Mill., 1768 ( Esp. caract. )
Menyanthes trifoliata L., 1753 ( Esp. caract. )
Phragmites australis (Cav.) Trin. ex Steud., 1840 ( Esp. caract. )
Rhamnus cathartica L., 1753 ( Esp. caract. )
Salix atrocinerea Brot., 1804 ( Esp. caract. )
Salix aurita L., 1753 ( Esp. caract. )
Salix cinerea L., 1753 ( Esp. caract. )
Salix pentandra L., 1753 ( Esp. caract. )
Scirpus sylvaticus 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