Exemplifying the Effects Using WetSpass Model Depicting the Landscape Modifications on Long-Term Surface and Subsurface Hydrological Water Balance in Bilate Basin, Ethiopia

The alteration of spatial patterns landscape interrupts water balance components in Bilate basin Ethiopia. aim is to characterize the spatio-temporal variation surface-subsurface hydrological using WetSpass model comprising soil type, topography, groundwater depth, and slope. Environment for Visualizing Images (ENVI) Arc-GIS software were assimilated classification Landsat images from 1989 2019 replicating forest, shrub, grasslands which decrease by 4.0%, 9.41%, 14.87%, respectively, agricultural land increasing 27.06% 2019. goodness fit surface runoff subsurface flow two outputs with square regression (R2) 0.79 0.81, while root mean errors (RMSEs) 8.26 mm 8.39 2019, calculated. Average annual interception, recharge, runoff, actual-evapotranspiration 36.4 mm, 127.34 614.95 517.59 revealing that works remarkably simulating balance.