摘要
针对三峡库区神农溪流域地质灾害发育,本文首先在深入分析流域地质灾害发育特征的基础上,编制了神农溪流域地质灾害分布图;然后基于信息量模型,确定了影响神农溪流域地质灾害发育各个因子及其信息量值,并结合实际条件对负信息量值进行了修正,同时利用ArcGIS的叠加分析完成了神农溪流域地质灾害易发性分区图;最后辅以专家打分模型对该分区图进行了修正。结果表明信息量模型的预测结果与实际调查情况基本吻合,该研究结果对提高区域地质灾害风险评价和预测精度具有重要的理论和实际意义。
For the development of geo-hazard in Shennong River basin,on the basis of the characteristics analysis of geo-hazards,this paper compiles the distribution maps of geo-hazards according to the field investigation data,ascertains the impact factors of geo-hazards development and their information,revises the negative information by actual conditions,completes the susceptibility zoning map of geo-hazards based on ArcGIS superposition analysis function,and then adjusts the zoning map by experts scoring model.The results show that the prediction results of information model is consistent with the field investigation.The research findings have important theoretical and practical significance for improving the risk evaluation and prediction accuracy of regional geo-hazards.
出处
《安全与环境工程》
CAS
北大核心
2013年第2期46-52,共7页
Safety and Environmental Engineering
基金
国土资源部"十一五"国土资源大调查计划项目(1212010640600
1212010814056)
关键词
神农溪流域
崩滑灾害
易发性区划
ARCGIS
信息量模型
Shennong River basin
collapse and slide hazard
susceptibility zoning
ArcGIS
information model
