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Biotopes & milieux

Biotope - Typologie Européenne EUNIS

G1.1 - Niveau 3 : Forêts riveraines et forêts galeries, avec dominance d'Alnus, Populus ou Salix
Description
Riparian woods of the boreal, boreo-nemoral, nemoral and submediterranean and steppe zones, with one or few dominant species, typically Alnus, Betula, Populus or Salix. Includes woods dominated by narrow-leaved willows Salix alba, Salix elaeagnos, Salix purpurea, Salix viminalis in all zones including the mediterranean. Excludes riverine scrub of broad-leaved willows, e.g. Salix aurita, Salix cinerea, Salix pentandra (F9.1).
Taxons (Liens actifs si espèces présentes)
Corallinaceae sp., Corallinaceae sp., Nematoda sp., Nemertea sp., Populus L., 1753, Salix cinerea L., 1753, Salix pentandra L., 1753, Terebellidae sp., Terebellidae sp., Terebellidae sp.,
G1.11 - Niveau 4 : Saulaies riveraines
Description
Salix spp. scrub or arborescent formations, lining flowing water and submitted to periodic flooding, developed on recently deposited alluvion. Willow brushes are particularly characteristic of rivers originating in major mountain ranges. Shrubby willow formations also constitute an element of lowland and hill riverine successions in all major biomes, often making the belt closest to the water course. Taller arborescent willow formations often constitute the next belt landwards in riverine successions of lowland western nemoral, eastern nemoral and warm-temperate humid forest regions, and a large part of the less diverse riverine systems of the steppic, mediterranean and cold desert zones. Vegetation of alliance Salicion albae, species Salix alba, Salix fragilis, Populus alba, Populus nigra, Populus canescens, Lycopus europaeus, Lysimachia vulgaris, Phalaroides arundinacea and Urtica dioica. May be affected by the invasive alien species Solidago canadensis, Aster novi-belgii, Aster novi-anglii, Impatiens glandulifera.
Taxons (Liens actifs si espèces présentes)
Aster novae-angliae L., 1753 ( Esp. caract. )
Aster novi-belgii L., 1753 ( Esp. caract. )
Impatiens glandulifera Royle, 1833 ( Esp. caract. )
Lycopus europaeus L., 1753 ( Esp. caract. )
Lysimachia vulgaris L., 1753 ( Esp. caract. )
Phalaroides arundinacea (L.) Rauschert, 1960 ( Esp. caract. )
Populus alba L., 1753 ( Esp. caract. )
Populus nigra L., 1753 ( Esp. caract. )
Salix alba L., 1753 [nom. et typ. cons.] ( Esp. caract. )
Salix L., 1753 ( Esp. caract. )
Solidago canadensis L., 1753 ( Esp. caract. )
Urtica dioica 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