The effect of landuse management simulation on erosion and sedimentation at Progo Hulu Watershed

The land use condition of Progo Hulu Watershed that does not heed the rules of conservation will causing the risk of erosion and sedimentation so that the land and water conservation is needed to consider in reducing erosion and sedimentation. This study aims to calculate the amount of erosion and sedimentation at existing condition and to analyse the effect of land use change simulation on erosion and sedimentation in Progo Hulu Watershed. There are five scenarios simulated by upgrading the composition of permanent land cover index. The result shows that the scenario five is the best realistic scenario that can reduce erosion and sedimentation into permittable value while there is still a lot of cultivation area so the conservation process runs while continuing the cultivation activity.