The classification of the level of land degradation as the flood cause in some sub-watersheds at Pesawaran Regency, Lampung

Abstract

Abstract The purpose of this study was to evaluate the distribution and classification of land degradation levels in several sub-watersheds in the Pesawaran Regency. This research employed the survey and non-experimental approaches. The research was conducted in four sub-watersheds of Pesawaran Regency, namely Way Semah, Way Punduh, Way Ratai, and Bulok. Topographic, land-use changes, soil type, and rainfall were the parameters used to assess the degradation of sub-watersheds. The land analysis unit was the unit of interpretation and mapping. The results showed that the dominant factors causing land degradation were changes in land use for settlements and agriculture. The sub-watersheds with the highest degradation was Way Ratai.