Approche cartographique des aménagements antiérosifs cas : du bassin versant de l’Oued Kramis (Algérie)

Abstract

The problem of water erosion is global, Algeria is affected by this phenomenon which remains dangerous because it accelerates the degradation of the soil subjected to the cumulative energy of the raindrops. The Oued Kramis catchment area with an area of 302 km² undergoes an average loss of soil by the groundwater erosion of 27.8 t / ha / year. The objective of this study is to produce a map of priority areas of intervention to try to propose an anti-erosion management plan for the three zones with an order of priority for each one, to avoid the risk of erosion on the zones farming lands. For each zone a combination of both preventive (biological) and curative (mechanical) management measures has been proposed, but their sustainability depends on the participation of the local population.