Prediksi Erosi Sub Daerah Aliran Sungai Sei Sikambing dengan Metode Universal Soil Loss Equation (USLE)

Abstract

The Deli watershed has a critical level of erosion, so the cause of erosion must be found by calculating the erosion value in the Sei Sikambing sub watershed in Medan City. This study aims to determine the magnitude of erosion and hazard categories of erosion using the Universal Soil Loss Equation (USLE) method. This study shows that the highest erosion value was 242,51 tons/ha/yr and the lowest was 54,54 tons/ha/yr. The highest tolerable erosion value was 30,88 tons/ha/yr and the lowest was 20,2 tons/ha/yr. The highest hazard value of erosion was 12,01 has an erosion hazard class IV with weight criteria and the lowest with a value of 2,03 has an erosion hazard class II with mild criteria.