基于遥感技术支持的地质灾害及孕灾环境综合评价  

Comprehensive evaluation on geological hazards and the environment of developing geological hazards in the northwest Hebei on the basis of RS

作　　者：乔彦肖[1] 李密文[1] 张维宸[1] 

机构地区：[1]河北省遥感中心,河北石家庄050021

出　　处：《中国地质灾害与防治学报》2002年第4期83-87,共5页The Chinese Journal of Geological Hazard and Control

摘　　要：在利用卫星遥感技术对研究区地质灾害及孕灾环境进行定量或定性研究的基础上,采用AHP多层次分析法,对地质灾害及孕灾环境进行综合评价。选择10种地质灾害及孕灾环境因素作为评价因子,10种因素被分成两个中间要素层,构建成三层评价体系。评价结果,地质灾害及孕灾环境轻良区占全区总面积的19 7%,中度区为52 4%,重差区为27 9%。评价结果还反映了地质灾害类型的空间分布特征。研究区地质灾害严重,其发育与地质环境背景有关。The geological environment in Zhangjiakou area has greatly influenced the ecological environment in Beijing region. It is necessary to evaluate comprehensively the geological hazards and the environment of developing geological hazards in this area in order to protect the ecological environment of Beijing. On the basis of studying quantitatively or qualitatively the geological hazards and the environment of developing geological hazards using remote sensing technique, the geological hazards and their environment are evaluated with the Analytic Hierarchy Process (AHP). Ten elements that involved some geological hazards and their relative environment elements are selected to evaluate the geological hazards and the environment states of developing geological hazards in the study region. The ten evaluation elements are divided into two groups (middle element lager), so a three\|layer evaluation system is constructed. Through such evaluating, the slight and good area of geological hazards and the environment' state of developing geological hazards account for 19\^7 per cent of all the study area, the mid\|degree area 52\^4 per cent and the serious and bad area 27\^9 per cent. The space distribution features of all kinds of geological hazards are roughly described. All in all, the evaluation conclusion for all the study area is that the geologic hazards in the area is serious and the geological environment state bad.

关 键 词：卫星遥感 地质灾害 孕灾环境 层次分析法 综合评价 

分 类 号：P642.2[天文地球—工程地质学] TP75[天文地球—地质矿产勘探]