Soil erosion is an extremely dynamic and complicated process. The spatial and temporal variability of this
phenomena are very high within a catchment. Soil erosion is affected by many factors, among them topographic
position of slope, vegetation and soil type have a momentous role on erosional behavior of soil (Morgan, 1986). The
complexity of this process is not obvious. Soil loss from runoff plots on various soil types have shown different
erosion rates under the same conditions of rainfall, topography and vegetal cover (Hussein, Kariem, & Othman,
2007). Acquired Data from erosion plots also contain large quantities of unexplained variability, which must be
considered in experimental designs and to evaluate erosion models using erosion and runoff data