“Kajian Erosi Di Daerah Aliran Sungai Sario Sulawesi Utara” “Study of Erosion in Sario Watershed North Sulawesi”

Abstract

ABSTRACT
 
Watersheds are very important for human life. Land erosion is one of watershed damage conditions which causes a lot of grief to the community. To determine the extent of erosion and the level of erosion hazard in Sario watershed is the goal of this study. A survey method was carried out with a land unit approach. Erosion was calculated using the USLE. The amount of erosion was 1077,76 tons/hectare/year with an average erosion of 53,89 tons/hectare/year. The level of erosion hazard in Sario watershed consist of : an area of 857,71 ha (41%) of very low erosion hazard, an area of 549,12 ha (26,83%) of low erosion hazard, an area of 200,63 ha (9,80%) of moderate erosion hazard and an area of 439,57 ha (21,47%) of severe erosion hazard.
 
Keywords : Watersheds, Erosion, Erosion Hazard