The Monitoring of Debris Movement and Analysis of Watershed Geomorphology

The processes and affected area of rainfall-induced mass movements and debris flows are explored in this three-year-span project by employing both field monitoring and morphometric analysis of the watershed. The initiation, transport and deposition processes of massive landslides and debris flows in Shenmu watershed, Nantou county will be examined based on the on-site monitoring system with geophone sensors, rain gage and CCDs. The field reconnaissance and case studies of the watershed will be deployed. The geomorphic parameters controlling landslides and debris flows will be examined based on case studies. Throughout the integration of five inter-related projects, the mechanism and the processes of rainfall-induced mass movements can be validated by the on-site monitoring system as well as the watershed landscape evolution. The result of this study will be beneficial for the further understanding of slope movements and debris flows and the impact on the consequent affected area.