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ELABORATION OF AN EROSION MAP USING THE ANALYTICAL HIERARCHY PROCESS (AHP) CASE OF THE REGION OF CONSTANTINE (ALGERIA)

A multi-criteria Analytical Hierarchy Process (AHP) analysis was carried out using a geographic information system (GIS) integrating several factors, namely slope, geology, annual average rainfall and land use, which effects interfere and act on erosion dynamics of the Wilaya (province) of Constantine. The objective of this study is to better understand this phenomenon through an accurate assessment and spatialization of the level of vulnerability in this region.