摘要
通过清原县地质灾害野外实地调查,分析分布规律和影响因素之间的关系,选取基础因子和诱发因子2类评价指标,利用层次分析法(AHP)及ArcGIS对单个影响因子进行分析,最终绘制出清原县主要地质灾害易发性区划图。研究表明:选取的8个影响因子中,地质构造因子对该研究区地质灾害影响最大;高、中、低易发区面积分别占全区的24.33%、23.53%和52.15%,清原县多属于低易发区;主要高、中易发区分布在浑河上游中低山丘陵区,低易发区分布于柴河、清河、柳河等流域;总体呈南高北低的分布特点,未来南部是地质灾害预防的重点区域。
Based on the field survey of geological hazards in Qingyuan County,the relationship between the distribution law and the influencing factors was analyzed,and two types of evaluation indicators,basic factors and inducing factors,were selected.AHP and ArcGIS were used to analyze the individual influencing factors.Map of the susceptibility of major geological disasters in Qingyuan County.The research shows that:Among the 8 impact factors selected,geological structural factors have the greatest influence on the geological disasters in the study area.The areas of high,medium and low vulnerability areas accounted for 24.33%,23.53%and 52.15%of the whole area,respectively.Most of Qingyuan County belonged to low vulnerability areas.The main high and middle susceptible areas are distributed in the middle and low mountains and hilly areas in the upper reaches of the Hunhe River,and the low susceptible areas are distributed in the Chaihe,Qinghe,Liuhe and other watersheds;they are generally distributed high in the south and low in the north.Focus areas for prevention.
作者
朱霞
张戈
颜秉英
张旭升
ZHU Xia;ZHANG Ge;YAN Bing-ying;ZHANG Xu-sheng(Liaoning Normal University,Dalian 116029,China;Hydrogeological Engineering Geological Survey Institute of Liaoning Province,Dalian 116037,China;Heilongjiang University of Science and Technology,Harbin 150001,China)
出处
《河北地质大学学报》
2020年第6期77-83,共7页
Journal of Hebei Geo University
基金
清原县地质灾害与矿山地质环境详细调查(辽国土资项〔2017〕20号)。
关键词
清原县
地质灾害
层次分析
影响因子
易发性
Qingyuan County
geological hazards
analytic hierarchy process
impact factors
susceptibility
