摘要
通过综合分析西安主城区地质环境的主要影响因素,建立了评价指标体系和分级标准。在此基础上,按地貌单元划分评价单元,建立西安市城区空间图形数据库,并进行空间分析,获得了各区评价指标值。用灰色关联法计算各指标权重,最后用模糊综合评判方法进行了评价。据此,参照国家标准并结合西安市城区地质环境的特点,把西安市城区地质环境质量划分四个质量等级。
By analyzing main factors influencing city region geo - environment synthetically, the paper established the assessment index system and grading standards of Xi＇an. Based on this, the study classified geomorphic unit into evaluation unit, established database of Xi＇an urban spatial pattern. Regional evaluation indexes are obtained by making spatial analysis. The weights is calculated by using gray relational method, and finally the fuzzy comprehensive evaluation model is used to evaluate. The quality of geological environment in Xi＇an was classified into four quality grades.
出处
《环境科学与管理》
CAS
2016年第9期185-189,共5页
Environmental Science and Management
基金
陕西省科技创新团队(41172262)
关键词
西安主城区
地质环境质量
综合评价
Xi＇an city
quality of the geological environment
comprehensive assessment
