Simple download service (Atom) of the dataset: Watershed dedicated to a particular use — Feeding surface of a watercourse or water body

The catchment area is defined as the water collection area, considered from an outlet: it is bounded by the contour within which all water flows on the surface and underground to this outlet. Its boundaries are the dividing lines of the waters.汇水区（catchment area）被定义为集水区域，以出水口为参照进行界定：其边界由等高线划定，该等高线范围内所有地表与地下径流均会汇入该出水口。其边界即为水域分水岭。