Study area
The Ben Ahmed watershed is located in the region of Casa-Settat (Settat
province), 70 km Southeast of Casablanca in Northwest Morocco, covering
545 ha. The study area receives an average annual rainfall of 400 mm and
is under a semi-arid climatic with a mean minimum and maximum
temperature of 9°C and 26°C. Almost 75% of the area is occupied by
agriculture land.