摘要
选取大气、地表水、噪声、指示生物作为二级评价指标,采用高效应等级优先的指数型计算方法,对兰州市的城市环境质量进行了综合评价,分析了各二级指标对兰州市综合环境质量状况的贡献率。结果表明：兰州市2006~2008年的城市综合环境质量等级均为5级,综合环境质量状况均为中度污染;各二级指标对兰州市综合环境质量状况的贡献率大小顺序为：指示生物分指标〉噪声分指标〉大气分指标〉水质分指标。
This article comprehensively evaluated the environment quality in Lanzhou by using the grade of higher environment-effect priority and selecting atmosphere,surface water,noise and indicator organism as the second-level indexes,and analyzed the rates of second-level indexes to the comprehensive environment quality.The result indicated： The grade of comprehensive environment quality in Lanzhou was degree 5,the condition was moderate contamination from 2006 to 2008;the sequence of contribution rates was： indicator organismnoiseatmosphere water quality.
出处
《水资源与水工程学报》
2010年第5期43-46,共4页
Journal of Water Resources and Water Engineering
基金
甘肃省高校青年教师基金资助(0702-02)
关键词
环境质量
综合评价
指标
贡献率
兰州市
environment quality
comprehensive evaluation
index
contribution rate
Lanzhou City
