“…Recently many physically distributed models were employed to detect the spatial and temporal land cover changes on water resources e.g., MIKE SHE (Refsgaard andStorm, 1995 andIm et al, 2009), SWAT (Arnold, 1998 andPervez andHenebry, 2015), TOPMODEL (Beven andKirkby, 1979 andGumindoga et al, 2014). Miller et al, (2002) applied two hydrological models SWAT as a continuous simulation model and KINEROS (Smith et al, 1995) as an event oriented model, through the Automated Geospatial Watershed Assessment Tool (AGWA) to study the hydrologic responses of three watersheds to the land cover changes in four time periods 1973,1986,1992and 1997for the San Pedro River basin, and in 1975,1985,1991and 1998 for the Cannonsville watershed, USA.…”