河北省崩滑流地质灾害空间分布特征与孕灾条件分区研究

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中图分类号:P642 文献标识码:A 文章编号:2097-5465(2025)06-0085-09
Abstract:Theanalysisofthespatialdistributioncharacteristicsofcollpse,landslide,anddebrisfowinHebei province,along withtheonationof teirpredisposingconditions,canprovideareliabletheoreticalbasisanddatasupportforgeologicaldisaster preventionand mitigation.This study employsspatial autocorrelation Moran's I and kernel density estimation for cluster analysis to examinethespatialdistributionofcollapses-flowdisastersinHebeiprovince.Combinedwiththepredisposingconditionsof these disasters,thefuzzyC-meansclusteringmethdisapliedtozonatetheirspatialdistribution.Theresultsindicatethatcolapses-flow disastersexhibit significant spatial clustering.Approximately 46.05% ofthe study area is classified asa low-distribution zone for geological disasters,while 53.95 % isahigh-distribution zone.These disasters are primarily concentrated in northern Tangshan, northernandcentralQinhuangdao,mostofChengdeandZhangjiakou,aswellasthe Taihang Mountainregion,includingthe Baoding-Shijiazhuang-Xingtai-Handanbelt.
Keywords:geologic hazards;spatial distribution characteristics;Moran's I ;kernel density;thefuzzyC-mean
0 引言
崩塌、滑坡和泥石流(简称崩滑流)三种地质灾害具有相似的形成条件和分布规律,其突发性及难以预测,严重威胁了人民生命财产安全和社会生产活动[1-2]。(剩余10515字)