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Biotopes & milieux

Biotope - Typologie Européenne EUNIS

G4 - Niveau 2 : Formations mixtes d'espèces caducifoliées et de conifères
Description
Forest and woodland of mixed broad-leaved deciduous or evergreen and coniferous trees of the nemoral, boreal, warm-temperate humid and mediterranean zones. They are mostly characteristic of the boreonemoral transition zone between taiga and temperate lowland deciduous forests, and of the montane level of the major mountain ranges to the south. Neither coniferous, nor broadleaved species account for more than 75% of the crown cover. Deciduous forests with an understorey of conifers or with a small admixture of conifers in the dominant layer are included in unit G1. Conifer forests with an understorey of deciduous trees or with a small admixture of deciduous trees in the dominant layer are included in unit G3.
Taxons (Liens actifs si espèces présentes)
G4.C - Niveau 3 : Boisements mixtes à Pinus sylvestris et à Quercus thermophiles
Description
Forests or woods of sub-Mediterranean climate regions and supra-Mediterranean altitudinal levels, and of western Eurasian steppe and substeppe zones, in which deciduous or semideciduous thermophilous Quercus species, or sometimes Carpinus spp., Ostrya carpinifolia, share the main canopy with Pinus sylvestris, Pinus pallasiana, Pinus salzmannii, Pinus nigra, thermophilous pines, junipers or cypresses. They constitute pine-oak facies of thermophilous deciduous woodland (G1.7).
Taxons (Liens actifs si espèces présentes)
Calamagrostis sp. ( Esp. caract. )
Hydropoa sp. ( Esp. caract. )
Leersia sp. ( Esp. caract. )
Pinus nigra J.F.Arnold, 1785 ( Esp. caract. )
Quercus L., 1753 ( Esp. diagn. )
Scolochloa sp. ( Esp. diagn. )
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