Irianti, MitriNasrul, BesriIdwar, Idwar2018-07-132018-07-132018-04-10978-602-51349-0-6wahyu sari yenihttps://repository.unri.ac.id/handle/123456789/9346The upstream of Kamparwatershed represent the part of Siak Watershed in the Province of Riau which has been degradated.This research aims to determine the location, wide, and degree of the land criticality according to the erosion hazard level in the upstream of Kampar watershed. So the research can determine the way, type, and priorities of watershed management. This research used survey method and laboratory analysis of soil samples. The survey was done by observing the land use and conservation applied to the land unit. The data collected were rainfall, soil characteristics, slopes, crop management, and land conservation techniques. The obtained data were analyzed using the USLE formulation to define the erosion hazard level of the upstream Kampar watershed. The results found that the erosion of the upstream Kampar watershedis in the high category. The best practices to reduce the level of erosion hazard in the upstream Kampar watershed are improving the crop management and land conservation techniques in an integrated manner on each land unit.enerosionKampar watershedArticle