Risk assessment of landslide in China using GIS technique

With the development of hazard prevention and reduction in China, it is imperative under the situation that the assessment of regional landslide hazard, and it is one of the most important directions that the risk assessment supported by GIS in geo-hazard study. Based on the author抯 studies in the last years, a risk analysis system of landslides has been developed which is explored on the basis of software MAPGIS. This paper deals with the risk zonation of the regional landslide hazard of China supported by this system. The paper adopts the information value model and the grade model in the analysis of Geo-hazard, analysis of the vulnerability, and the risk assessment of the Geo-hazard. The analytic result is reliable and applied.