| Summary: | Groundwater circulating in aquifer systems comes mainly from water precipitation infiltration. This infiltration, which can be evaluated by different methods (water balance, hydrodynamic or
hydrochemical), is systematically distributed throughout the entire watershed or permeable zones. The main objective of this work is to estimate the recharge rate of the aquifers by using the distribution of factors related to the infiltration on the surfaces such the lithological nature of the soil/sub-soil, land use, vegetation cover and slope. The used approach is a cartographic one and it is based on different data related to the considered factors. This approach uses remote sensing data and geographic information system. The obtained result is a synthesis map of the recharge potential in the Sidi Bel Abbes plain in northwestern Algeria. This map is divided into four zones according to the recharge rate.
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