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Delineating groundwater recharge zones: semi-arid NW Algeria case study

Domain:

environment and energygeospatial

Record type:

paperdataset
Creator:
EldSamHabTau
Editor:
UniAgeHyd
Publisher:
CCSDTaylor & Francis online
Host:avatar
International audience In arid and semi-arid regions, groundwater is a vital resource increasingly impacted by population growth and agricultural demands. This study identifies potential groundwater recharge zones in the Oued Isser-Sikkak Basin, northwestern Algeria, using the Analytic Hierarchy Process (AHP) integrated with Geographic Information Systems (GIS). Six thematic layers-land use, slope, geology, drainage density, lineament density, and rainfall-were weighted and combined to produce a recharge potential map. The basin was classified into five categories: very high (4%), high (33.7%), moderate (45.6%), low (12.5%), and very low (1.9%) recharge potential. The highest potential zones were found in the south and east, where limestone and dolomite formations prevail. Validation with field observations and previous research showed an 83.7% match, confirming the model's reliability. The study demonstrates the effectiveness of integrating AHP and GIS in assessing groundwater potential, offering a valuable tool for sustainable water resource management in data-limited, dryland areas.

Visit

hal.umontpellier.fr

Tags

remote sensingGIS (Geographic Information Systems)groundwaterrecharge zoneOued Isser-Sikkak basinOued Isser-Sikkak basin recharge zone groundwater GIS (Geographic Information Systems) remote sensing[SDE]Environmental Sciences

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