Evaluasi Kinerja Sub DAS Sei Sikambing Berdasarkan Aspek Kelestarian Lingkungan

Abstract

The Sei Sikambing sub-watershed is part of the Deli watershed. The Sei Sikambing sub-watershed is a polluted river. The Sei Sikambing sub-watershed has a total area of 4,226.62 ha with a main river length of 18.73 km. This research aims to determine the performance of the Sei Sikambing Sub-watershed based on environmental sustainability aspects. This research obtained a critical land percentage value of 99.12%, including the Very High class, the percentage of vegetation cover was 0.038%, including the Very Poor class, the Erosion Index was 4.82, including the Very High class, the Flow Regime Coefficient was 2.101, including the Low class, Flow Coefficient Annually 0.60, including the Very High class, Sediment Load of 18,088 tonnes/ha/year including the Very High class, Flood Frequency never occurs in a year including the Very Low class, Water Use Index of 2,833 m3/year/Person including the Very Bad class , Protected Areas of 0 are in the Very Poor class, Cultivated Areas of 100% are in the Very Low class. The carrying capacity of the Sei Sikambing sub-watershed based on environmental sustainability aspects is classified in the Poor class with a total score of 90.5