Estimation of Erosion and Sediment using Gavrilović Method in Krueng Jreu Sub-basin, Aceh Province, Indonesia

Erosion and sediment in a basin can be estimated by calculating forecasting using various methods. This study aims to assess erosion sedimentation the Krueng Jreu sub-basin province of Aceh, Indonesia, Gavrilović method. research was carried out analyzing secondary data for last ten years, from 2012 2021. Data include geology, slope, land use, river channel networks. The observed parameters coefficient intensity erosion, temperature coefficient, which are used analyze volume, spatial rate, total rate area. results calculations method show that four main biophysical characteristics sub-basin, including (1) sensitivity soil local geological conditions (2) (3) type, (4) slope land, have been shown affect occurrence annual rates. Geological use provide high level erosion. Temperature rainfall directly proportional volume rate. lowest yearly 2019 were 64965.41 m3km-2year-1 58206.18 m3km-2year-1. Meanwhile, highest will occur 2021, 101500.71 90940.21 Fluctuations caused rainfall, affecting