S4-1 - Landes humides

Wet heath

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Heath with prominent Erica tetralix on shallow, acid, nutrient-poor peats and peaty mineral soils, kept moist for much of the year and often seasonally waterlogged, through the Atlantic and subatlantic lowlands and foothills of Europe. It typically occurs in wet depressions and seepage areas within dry heaths or as a marginal zone around bogs where drainage of deeper peats can increase its extent. In milder oceanic climates, other Erica and Ulex spp. occur in richer humid heath. The habitat is frequently influenced by grazing and sod-cutting.

Espèces diagnostiques

Erica tetralix, Juncus squarrosus, Trichophorum cespitosum, Molinia caerulea aggr., Calluna vulgaris, Sphagnum compactum, Gentiana pneumonanthe

Espèces constantes

Erica tetralix, Calluna vulgaris, Molinia caerulea aggr., Potentilla erecta, Trichophorum cespitosum, Hypnum cupressiforme aggr., Juncus squarrosus, Eriophorum angustifolium, Drosera rotundifolia, Carex panicea, Narthecium ossifragum, Nardus stricta, Sphagnum compactum, Pleurozium schreberi, Cladonia portentosa, Eriophorum vaginatum, Dicranum scoparium, Betula pubescens, Pinus sylvestris, Carex nigra

Espèces dominantes

Erica tetralix, Calluna vulgaris, Molinia caerulea aggr., Trichophorum cespitosum, Hypnum cupressiforme aggr.

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)