Sens communSection of a stream of a few hundred metres to several kilometres. A reach change can be defined by the confluence of a tributary, changes in the morphology of the bed or of the valley or by changes in riverside vegetation, these variables reflecting changes in hydrology, chemical composition of water and disturbance regime.
According to Cemagref
Termes associés à des définitions du Sandre
Soumis au comité de relecture.