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Dernière mise à jour : Mai 2018

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Vallée du Ciron

Vallée du Ciron
Nom du dispositif
Vallée du Ciron
Localisation
Vallée du Ciron (33, 40 et 47)

Map_Ciron

Type de dispositif
Ripisylve semi-naturelle
Mono ou multi-site
Multi-site
Insertion dans un réseau
Non
Site Web
Non
Description
 
Il s'agit d'un site atelier qui s'étend sur un bassin versant. Il est essentiellement boisé mais le vignoble est présent dans la partie aval (appelation Graves et Sauternes). La ripisylve est en excellent état écologique et quasi continue sur 100 km. Cette vallée abrite une biodiversité très originale et riche car il s'agit d'un refuge glaciaire pour le hêtre. Les hêtres sont cartographiés et tous les reproducteurs génotypés. La cartographie de habitats  est disponibles ainsi que de nombreux inventaires : faune, flore,...
Date(s) d'installation
Études débutées en 2003
Surface
50.000 ha
Type de substrat
Sable landais, sols calcaires, alluvions
Espèces structurantes
Ripisylve avec Fagus sylvatica, Quercus robur, Alnus, Tilia… Présence de la pinède à pin maritime, de prairies, de grande culture et de vignes
Variables testées/observées
Diversité spécifique, diversité génétique, gestion forestière, microclimat, cycle de l'eau,etc
instrumentation-équipement particulier
Pièges à litière, pièges à carabes, capteurs de flux de sève.
Nature des données / type de mesures
Génétique, botanique, dendrochronologie, phénologie, climat, sociologie, isotopie
Disponibilité des données
Gestionnaire des données
Contact scientifique
Alexis Ducousso
Partenaires (installation/gestion/suivi)
Syndicat Mixte de la Vallée du Ciron
Publications