基于GIS的略阳县地质环境质量评价  

Geoenvironmental Quality Assessment of Lueyang County Based on GIS

作　　者：赵法锁[1] 宋飞[1] 王艳婷[1] 马显春[1] 

机构地区：[1]长安大学地质工程与测绘工程学院,陕西西安710054

出　　处：《地球科学与环境学报》2006年第1期88-91,共4页Journal of Earth Sciences and Environment

基　　金：国土资源部县(市)地质灾害调查与区划项目(2001039)

摘　　要：基于地理信息系统(GIS)和多级模糊模式识别模型,建立了略阳县空间数据库和地质环境质量评价模型;综合考虑地形坡度、工程地质岩组、岩土体结构类型、地下水位、植被发育情况、月平均降雨量、人类工程活动强度等因素,用层次分析法确定各指标权值,应用评价模型对略阳县地质环境质量进行了综合评价,把略阳县地质环境划分为优、良、中、差4个质量级别。Based on GIS and the model of multi-class fuzzy pattern recognition, the spatial database in Lueyang county and geoenvironmental quality assessment model are established. By considering such factors as terrain slope, engineering geological rock groups, structural type of rock and soil mass, ground water level, vegetation growth conditions, monthly precipitation, intensity of human engineering activities, the geoenvironmental quality in Lueyang county is assessed comprehensively with the assessment model. The geoenvironment quality is classified into four classes： best, good, moderate, and worst. The assessment result can provide rational plan and reference basis for the prevention and control of geological hazards and the protection of ecological geoenvironment.

关 键 词：地理信息系统 地质环境 评价模型 多级模糊模式识别模型 

分 类 号：X141[环境科学与工程—环境科学] P208[天文地球—地图制图学与地理信息工程]