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Biotope - Typologie Européenne EUNIS
C3.51 - Niveau 4 : Gazons ras eurosibériens à espèces annuelles amphibies
Description
Dwarf oligo-mesotrophic annual communities of recently emerged muds and sands of the nemoral, boreonemoral and boreal regions. Terrestrial forms of amphibious species and annual species are frequent. A dynamic habitat, and several aspects can occur during the vegetation cycle. If the substrate is sufficiently wet, and also in advanced successional stages, the moss layer is abundant. Typical species are Juncus bufonius, Cyperus fuscus, Cyperus flavescens and other species from vegetation of class Isoeto-Nanojuncetea.
Taxons (Liens actifs si espèces présentes)
C3.511 - Niveau 5 : Communautés naines des eaux douces à Eleocharis
Description
Rare communities colonising the fluid muds of drying ponds of nemoral, boreonemoral, boreal, and, locally, steppic, Palaearctic Eurasia, characterised by Eleocharis ovata, Eleocharis carniolica, Carex bohemica, Lindernia procumbens, Scirpus supinus, Limosella aquatica, Cyperus fuscus, Peplis portula, Juncus tenageia, Elatine hexandra, Elatine hydropiper, and Coleanthus subtilis; the latter species has a highly disjunct distribution, principally in western France, the Czech Republic and adjacent southeastern Germany and northern Austria, the Lake Ladoga region of Russia and Amurland.
Taxons (Liens actifs si espèces présentes)
Carex bohemica Schreb., 1772 ( Esp. caract. )
Coleanthus subtilis (Tratt.) Seidl ex Roem. & Schult., 1817 ( Esp. caract. )
Cyperus fuscus L., 1753 ( Esp. caract. )
Elatine hexandra (Lapierre) DC., 1808 ( Esp. caract. )
Elatine hydropiper L., 1753 ( Esp. caract. )
Eleocharis ovata R.Br., 1810 [nom. inval.] ( Esp. caract. )
Juncus tenageia Ehrh. ex L.f., 1782 ( Esp. caract. )
Limosella aquatica L., 1753 ( Esp. caract. )
Lindernia procumbens (Krock.) Philcox, 1965 ( Esp. caract. )
Peplis portula L., 1753 ( Esp. caract. )
Scirpus supinus L., 1753 ( Esp. caract. )
Coleanthus subtilis (Tratt.) Seidl ex Roem. & Schult., 1817 ( Esp. caract. )
Cyperus fuscus L., 1753 ( Esp. caract. )
Elatine hexandra (Lapierre) DC., 1808 ( Esp. caract. )
Elatine hydropiper L., 1753 ( Esp. caract. )
Eleocharis ovata R.Br., 1810 [nom. inval.] ( Esp. caract. )
Juncus tenageia Ehrh. ex L.f., 1782 ( Esp. caract. )
Limosella aquatica L., 1753 ( Esp. caract. )
Lindernia procumbens (Krock.) Philcox, 1965 ( Esp. caract. )
Peplis portula L., 1753 ( Esp. caract. )
Scirpus supinus 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