[1] Inst Arid Reg, Dept Eremol & Combating Desertificat, Medenine, Tunisia
[2] Natl Agron Inst Tunisia, Dept Agr Engn Waters & Forests, Tunis, Tunisia
[3] Tech Univ Berlin, Dept Ecol Ecohydrol & Landscape Evaluat, Ernst Reuter Pl 1, D-10587 Berlin, Germany
[4] Isfahan Univ Technol, Coll Agr, Dept Water Engn, Esfahan 8415683111, Iran