91F0 - Forêts mixtes à Quercus robur, Ulmus laevis, Ulmus minor, Fraxinus excelsior ou Fraxinus angustifolia, riveraines des grands fleuves (Ulmenion minoris)

Riparian mixed forests of Quercus robur, Ulmus laevis and Ulmus minor, Fraxinus excelsior or Fraxinus angustifolia, along the great rivers (Ulmenion minoris)

Liste hiérarchisée et descriptifs des habitats d'intérêt communautaire de la directive "Habitats"

Description

Forests of hardwood trees of the major part of the river bed, liable to flooding during regular rising of water level or, of low areas liable to flooding following the raising of the water table. These forests develop on recent alluvial deposits. The soil may be well drained between inondations or remain wet. Following the hydric regime, the woody dominated species belong to Fraxinus, Ulmus or Quercus genus. The undergrowth is well developed.

Espèces caractéristiques

Plants: Quercus robur, Ulmus laevis, U. minor, U.glabra, Fraxinus excelsior, Fraxinus angustifolia, Populus nigra, P. canescens, P. tremula, Alnus glutinosa, Prunus padus, Humulus lupulus, Vitis vinifera ssp. sylvestris, Tamus communis, Hedera helix, Phalaris arundinacea, Corydalis solida, Gagea lutea, Ribes rubrum.

Correspondances avec la classification du Paléarctique

44.4

Correspondances avec d'autres classifications

German classification: ‘43040501 Hartholzauenwald mit weitehend ungestörter Überflutungsdynamik', ‘43040502 Hartholzauenwald ohne Überflutung'.
Nordic classification: ‘2223 Ulmus glabra-typ', ‘2236 Quercus robur-Ulmus glabra-Tilia cordata typ'.

Remarques

These forests form mosaics with pioneer or stable forests of soft wood trees, in low areas of the river bed; they may develop also from alluvial forests of hard wood trees. This habitat type often occurs in conjunction with alder-ash woodlands (44.3).

Bibliographie

Conseil de l'Union européenne, 2013. Directive 2013/17/UE du Conseil du 13 mai 2013 portant adaptation de certaines directives dans le domaine de l'environnement, du fait de l'adhésion de la République de Croatie. Annexes. Partie B Protection de la nature. Journal officiel de l'Union européenne, L 158 du 10/06/2013, p. : 195-203. (Source)