This study established a hillslope failure susceptibility model for sediment disasters by combining the soil water index (SWI) and landslide susceptibility values to formulate a basis for warning release. The sum of the rainfall depth in the three tank of tank model can be considered as the rainfall retention depth in soil layer. This study collected data of disaster cases and used them to establish lines of disaster coverage. The results indicated that the SWI alert value corresponded to the line of disaster coverage and the hydrological risk was related to disaster coverage. Furthermore, a landslide susceptibility model was constructed involving the frequency ratio method, which is based on landslide factors. The physiographic hazard level was obtained and normalized according to the landslide susceptibility value. This study established a hillslope failure susceptibility model for sediment disasters by combining hydrological risk and frequency ratio based physiographic hazard levels.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。