Définition
          Sens commun
The most upstream area of a watershed territory. The river basin head is the land where the small streams close to springs flow through.
Source
according to IOWater
Sens technique
Upstream portion of the catchment areas and by extension the upstream section of rivers which, in hilly areas in particular, are often less exposed to anthropogenic pressures than the downstream parts (but still very fragile) and from this point of view are reference sections to be preserved.
Source
According to Rhone-Mediterranean and Corsica Water Agency
Thématiques associées
              
          Autres termes utiles à la compréhension issus du glossaire
          
      Termes associés à des définitions du Sandre
              
          Translations
              
          Review status
              Soumis au comité de relecture.