Kajian Laju Erosi Dengan Metode Universal Soil Loss Equation (USLE) pada Sub Daerah Aliran Sungai Deli

Abstract

The Deli sub-watershed, which is part of the Deli watershed, whose health conditions have been disturbed in recent years, was examined for the causes of erosion by calculating the erosion value in the Deli watershed sub-watershed. The aim of the study was to determine the magnitude of erosion and the category of erosion hazard using the Universal Soil Loss Equation (USLE) method. This research provides indications that the highest erosion value is 158.03 tons/ha/year and the lowest value is 0.072 tons/ha/year. The highest erosion tolerance value was 45.37 tons/ha/year and the lowest was 27.54 tons/ha/year. The highest erosion hazard level score is 5.73 having an erosion risk class II with mild criteria and the lowest gets a value of 0.0015 having an erosion risk class I with very mild criteria.