The Hodna basin, one of the most important basins of Algeria, marks the transition between the Tellian domain in the north and the Sahara in the south. In addition, hydro-agricultural developments (construction of dams for irrigation) still have very important impacts on the functioning and hydrogeological characteristics of the basin. The Geographic Information System (GIS) is a computerized tool for representing and analyzing all the elements that exist on Earth as well as all the...