| In this paper, Wangcang geological disasters for the study, based on a detailed survey of geological disasters Wangcang 1:10 Wan, by main types of geological disasters in the study Wangcang, distribution and formation conditions, internal and external analysis of geological disasters affec t the dynamic action of the geological structure, geological environment, human activities and rainfall, GIS based spatial analysis capabilities, using analytic hierarchy process and information law, drawing on the concept of natural disaster risk in Wangc ang geological hazard assessment and zoning carrier and socio-economic infrastructure vulnerability zoning, through GIS platform, for regional risk evaluation of geological disasters.Geological disaster risk assessment and zoning, draw Geological Hazards divided the study area is high, medium and low grade, among them, seven high-risk towns, accounting for 33.33% of the total number of county towns, the risk of 10, accounting for 47.62%; 4 low-risk, accounting for 19.05%. For higher risk of regional, national and local governments should increase investment in disaster prevention and reduction, improve the ecological environment in these regions, and enhance awareness of disaster prevention, the use of engineering measures and non-engineering measures a combination of methods, minimize the geological disaster caused by a series of problems. |
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