Evaluation of best management practices to reduce sediment yield in the upper Gilo watershed, Baro akobo basin, Ethiopia using SWAT

The increasing sediment yield in the watershed is caused by natural and human activities, which significantly shifts hydro-meteorological watershed. Modified Universal Soil Loss Equation (MUSLE) equation Water Assessment Tool (SWAT) was used to estimate yields for each hydrological response unit (HRU) based on peak runoff, daily runoff volume, area of unit, other estimated default model parameters. amount from HRU then summed give total soil erosion watershed.The spatio-temporal variations Upper Gilo simulated identify hotspot select effective management practices (BMPs) reducing significant problems. Model calibration validation were carried out using data 1990 2004 2005 2014. results indicated that 1021.8 tonnes/yr. Furthermore, 17 sub-basins (37.8% area) are severely threatened high erosion. According simulation results, filter strips, terraces, contours reduced up 53.2%, 45.4%, 48%. Overall, selected BMPs highly watershed-prone areas.