The application of SWAT (Soil and water assessment tool) model to predict the hydrology characteristics garang watershed in Central Java province

Abstract

Intensive and exploitative land use, and a high population growth may reduce the carrying capacity of the environment and affect the hydrological balance. Changes in land use can influence hydrological characteristics, such as surface runoff, coefficient runoff, coefficient of river regime, streamflow maximum and minimum. This study aims to predict the hydrological characteristics of the Garang watershed using SWAT Models. SWAT key data input layer model include a Digital Elevation Model (DEM), soil maps and characteristic of the soil, land use maps and climate data. The results of the model is calibrated and validated using the coefficient of determination R2 and Nash Sucliffe efficiency (NSE). The model results showed in the excellent category