Improved Modelling of Soil Loss in El Badalah Basin: Comparing the Performance of the Universal Soil Loss Equation, Revised Universal Soil Loss Equation and Modified Universal Soil Loss Equation Models by Using the Magnetic and Gravimetric Prospection Outcomes

Water erosion is a natural fact in the cycle of shaping earth’s landforms and most evident form of land degradation on a planetary scale (Roose & De Noni, 2004; Dautrebande Sohier, 2006; Toumi et al., 2013; Azaiez, 2020a). Its effects have largely affected rural landscape. Although it result of an ancient primeval climatic tectonic forcing, man’s footprint its intensification remains reality. A real awareness this problem on part of scientists reflected many studies understanding risks. Experiments been carried out, equations models developed with aim preserving soil. The watershed wadi El Badalah, the subject study, not excluded from risk. present research is a new comparative contribution to quantification soil loss based four empirical (Universal Soil Loss Equation USLE, Revised Universal Soil Loss RUSLE, Modified MUSLE the adjusted model). main objective project test several empirical loss, extensively tested global scale, discuss potential each model order choose most appropriate for Badalah basin. method geotechnical and geophysical investigations. It consists determining anomalies the subsoil difference density resistivity the heterogeneous constituents subsoil. This look sectors potentially favorable infiltration at expense runoff.