The Srepok River basin, which flows along four provinces in Vietnam and parts of Cambodia, is presently facing critical issues such as floods and droughts, pollution of waterways, deforestation of catchments, erosion and resultant sedimentation of reservoirs, overexploitation of groundwater, water-use conflicts, and transborder issues. This study aims to investigate changes in streamflow and sediment yield that result from land use changes, and climatic variation in the Srepok watershed. Plausible scenarios of land use change are simulated through Geographic Information…