Simulation of the impact of land use change on surface run-off in Karst Leang Lonrong Sub-Watershed

Estimation of surface run-off in karst watersheds has not been widely carried out and the estimation method is generally developed for non-karst watersheds. This study aims to analyze accuracy river discharge at outlet Karst Biringere Sub-watershed using modified Soil Conservation Service Curve Number (SCS-CN) analyzed impact land use change on Sub-watershed. Modification SCS-CN estimating direct flow Beringere influenced by similarity rainfall fluctuation discharge. The provides satisfactory when with observed forms a linear relationship strong correlation. Changes reduced forest cover into mining areas result increased storage, larger becomes areas, greater increase reduction storage. Reclamation former area be reduces increases water