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Biotopes & milieux

Biotope - Typologie Européenne EUNIS

G1.31 - Niveau 4 : Forêts riveraines méditerranéennes à Peupliers
Description
Mediterranean multi-layered riverine forests of base-rich soils submitted to seasonal prolonged inundation with slow drainage, with Populus alba, Populus nigra, Fraxinus angustifolia, Ulmus minor, Salix alba, Salix spp., Alnus spp., lianas and often species of the Quercetalia ilicis, distributed in the mediterranean regions of the Iberian peninsula, southern France, the Italic peninsula, the large Tyrrhenian islands, the Hellenic peninsula, the southern Balkan peninsula, North Africa, and their zones of transition to adjacent climatic zones. Formations physiognomically dominated by tall Populus alba and/or Populus nigra are listed here. The poplars may, however, be absent or sparse in some associations which are then dominated by Fraxinus angustifolia, Ulmus minor and/or Salix spp. Such ensembles are listed under units G1.1121 or G1.33. The poplar forests are usually the tall ligneous vegetation belt closest to the water in riverside catenas.
Taxons (Liens actifs si espèces présentes)
Alnus Hill, 1753 [nom. inval.], Fraxinus angustifolia Vahl, 1804 [nom. cons.], Populus alba L., 1753, Populus nigra L., 1753, Salix alba L., 1753 [nom. et typ. cons.], Salix L., 1753, Ulmus minor Mill., 1768,
G1.312 - Niveau 5 : Forêts galeries provenço-languedociennes à Peupliers
Description
Riparian gallery forests lining water courses and other water bodies of Provence and Languedoc, in particular the rivers of the Mediterranean periphery of the Pyrenees, the Languedocian rivers draining the Causses and the southern Central Massif, the Rhone and Durance systems, especially the Camargue, the Verdon, the Var, with Populus alba, Populus nigra, Ulmus minor, Fraxinus angustifolia (locally accompanied by Fraxinus excelsior), Acer negundo, Acer campestre, Acer platanoides, Celtis australis, Quercus pubescens, Alnus glutinosa, and an undergrowth with Cornus sanguinea, Rubus caesius, Sambucus nigra, Vitis vinifera ssp. sylvestris, Bryonia cretica, Humulus lupulus, Rubia peregrina, Solanum dulcamara, Alliaria petiolata, Cucubalus baccifer, Saponaria officinalis, Iris foetidissima, Arum italicum, Brachypodium sylvaticum, Carex pendula; Celtis australis may form facies locally (e.g. Est‚rel).
Taxons (Liens actifs si espèces présentes)
Acer campestre L., 1753 ( Esp. caract. )
Acer negundo L., 1753 ( Esp. caract. )
Acer platanoides L., 1753 ( Esp. caract. )
Alliaria petiolata (M.Bieb.) Cavara & Grande, 1913 ( Esp. caract. )
Alnus glutinosa (L.) Gaertn., 1790 ( Esp. caract. )
Arum italicum Mill., 1768 ( Esp. caract. )
Brachypodium sylvaticum (Huds.) P.Beauv., 1812 ( Esp. caract. )
Bryonia cretica auct. non L., 1753 ( Esp. caract. )
Carex pendula Huds., 1762 ( Esp. caract. )
Celtis australis L., 1753 ( Esp. caract. )
Cornus sanguinea L., 1753 ( Esp. caract. )
Cucubalus baccifer L., 1753 ( Esp. caract. )
Fraxinus angustifolia Vahl, 1804 [nom. cons.] ( Esp. caract. )
Fraxinus excelsior L., 1753 ( Esp. caract. )
Humulus lupulus L., 1753 ( Esp. caract. )
Iris foetidissima L., 1753 ( Esp. caract. )
Populus alba L., 1753 ( Esp. caract. )
Populus nigra L., 1753 ( Esp. caract. )
Quercus pubescens Brot., 1805 [nom. illeg. hom.] ( Esp. caract. )
Rubia peregrina L., 1753 ( Esp. caract. )
Rubus caesius L., 1753 ( Esp. caract. )
Sambucus nigra L., 1753 ( Esp. caract. )
Saponaria officinalis L., 1753 ( Esp. caract. )
Solanum dulcamara L., 1753 ( Esp. caract. )
Ulmus minor Mill., 1768 ( Esp. caract. )
Vitis vinifera subsp. sylvestris (C.C.Gmel.) Hegi, 1925 ( 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