La Houille Blanche
Number 7-8, Décembre 1991
|Page(s)||575 - 580|
|Published online||01 October 2009|
Hydraulique agricole et aménagement des rivières
Agricultural hydraulics and river development
Ingénieur Général du Génie Rural, des Eaux et des Forêts
Drainage and irrigation act on transfers between soils and ground water. They have a direct influence, therefore, on rivers both as regards the hydrological regime and the quality of the water.
At present there are methods allowing for the minimization of high water levels from drainage networks. These waters thus transferred can be charged with fertilizer substances, mainly nitrates and also pesticides. An improvement in growing methods enables these risks to be minimized.
Irrigation uses large quantities of water. The installation of connectors, canals, basins, dams comes up against difficulties and may lead to major modifications in the water-flow regime.
The implementation and management of these developments requires more studies and precautions than in the past. The effect on underground water must be taken into account.
Drainage and irrigation increase greatly the productivity and adaptability of agriculture. Now a more refined agriculture enables the quality and the good state of the hydrographic network to be guaranteed at the same time.
© Société Hydrotechnique de France, 1991
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.