R5-1 - Ourlets forestiers thermophiles des sols riches en bases (EUNIS 2022)

R5-1 - Ourlets forestiers thermophiles des sols riches en bases

Thermophilous forest fringe of base-rich soils

R5-2 - Ourlets forestiers des sols acides pauvres en éléments nutritifs

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Fringe communities on neutral to base-rich, only moderately nutrient-rich soils in the transition zone between forests or scrub and open habitats or in similar situations alongside cliffs and on roadsides. They occur across large parts of lowland North-Western Europe, but also extending into more continental regions where they fringe more open thermophilous forests, and into cooler montane levels to the south and south-east. Typically comprising half-shade plants, other species of neighbouring habitats can also find a place and, in calcareous landscapes, the vegetation can be very species-rich, harbouring many rare and/or endangered species. This vegetation depends on grazing or mowing to prevent succession.

Espèces diagnostiques

Geranium sanguineum, Trifolium medium, Peucedanum cervaria, Origanum vulgare

Espèces constantes

Dactylis glomerata, Geranium sanguineum, Achillea millefolium aggr., Trifolium medium, Origanum vulgare, Poa pratensis aggr., Euphorbia cyparissias, Galium mollugo aggr., Vincetoxicum hirundinaria, Hypericum perforatum, Brachypodium pinnatum, Galium verum, Clinopodium vulgare, Fragaria vesca, Arrhenatherum elatius, Veronica chamaedrys aggr., Polygonatum odoratum, Festuca rubra aggr., Teucrium chamaedrys, Agrimonia eupatoria

Espèces dominantes

Trifolium medium, Geranium sanguineum, Vincetoxicum hirundinaria, Peucedanum cervaria

Bibliographie

European Topic Centre on Biological Diversity, 2021. EUNIS terrestrial habitat classification 2021 including crosswalks. ETC/BD-EEA. Table Excel transmise par S. Hennekens (Alterra) le 14/02/2022. (Source)