1.Kunming General Survey of Natural Resources Center,China Geological Survey;2.China;3.School of Water Resources and Environment,China University of Geosciences
constructing a scientific and reasonable geological disaster evaluation system is the basis of geological disaster prevention and control, it has important guiding significance for regional disaster prevention and mitigation. eight indexes are selected, including elevation, slope, engineering geological rock group, distance from structure, annual average rainfall, distance from water system, distance from main road and coal mine engineering activities. through the GIS platform, the weighted information model is used to evaluate the susceptibility of geological disasters in Fuyuan County. the results show that coal mining activities and engineering geological rock groups are important factors affecting the development of geological disasters in Fuyuan County. the area ( proportion ) of low-prone area, low-prone area, medium-prone area, high-prone area and high-prone area of geological disasters in the area are 383.8 km2 ( 19.54 % ), 449.77 km2 ( 31.12 % ), 759.67 km2 ( 23.53 % ), 1004.99 km2 ( 13.93 % ) and 630.97 km2 ( 11.89 % ), among them, the high-risk areas of geological disasters are more consistent with the distribution of coal mining activities, and are areas where disaster points are more concentrated.respectively. through ROC curve verification, the correct rate is 77.95 %, indicating that the zoning is reasonable and can provide reference for the prevention and control of geological disasters in Fuyuan County.
寸得欣,令狐昌卫,马一奇,等. 基于GIS和加权信息量模型的富源县地质灾害易发性评价[J]. 科学技术与工程, , ():复制