摘要
渭河是陕西省的第一大河流,准确的水质评价是治理渭河水体污染的重要前提。本文采用模糊变换原理和最大隶属度原则,运用模糊综合评判法对渭河潼关吊桥断面2012年的监测数据进行了全面评价。结果表明该断面春、夏、秋、冬四个季度的水质污染级别分别为:Ⅴ类(严重污染)、Ⅰ类(未污染)、Ⅳ类(重污染)和Ⅴ类(严重污染),主要污染物为NH3-N。与传统的单因子评价法相比,该方法能更全面合理地反映水质情况。
Weihe is the largest river in Shaanxi Province.Accurate assessment of water quality is important prerequisites for harnessing water pollution in Weihe.Based on the fuzzy transformation principle and principle of maximum degree of membership,the comprehensive evaluation of monitoring data in 2012 in Weihe Tongguan drawbridge section was presented in this paper by using the fuzzy comprehensive evaluation method.The results showed that the water quality pollution levels in this section are Class V （seriously polluted）,Class Ⅰ （unpolluted）,Class IV （heavily polluted） and Class V（seriously polluted） respectively in the four seasons.The main pollutant is NH3-N.Compared with the traditional method of single factor assessment,this method can reflect the water quality more comprehensively and reasonably.
出处
《环境科学与管理》
CAS
2014年第9期171-174,共4页
Environmental Science and Management
基金
国家水体污染控制与治理科技重大专项(No.2009ZX07212-002-003-004)
陕西省自然科学基金资助项目(No.2011JM5004)
西北旱区生态水利工程国家重点实验室培育基地开放研究基金资助(No.2013KFKT-3)
关键词
模糊综合评判法
渭河
污染物
评价
fuzzy comprehensive evaluation method
Weihe
pollutants
evaluation
