水土保持通报2012，Vol.32Issue(6)：51-54,60,5.
渭河陕西段水体主要污染物变化趋势分析
Trends of Major Pollutants Found in Weihe River in Shaanxi Province
关建玲 1王蕾 1裴晓龙 1杨玉珍 1杏艳 1刘勇1
作者信息
- 1. 陕西省环境监测中心站,陕西西安710054
- 折叠
摘要
Abstract
The methods of comprehensive pollution index,double weight index,and Spearman′s rank correlation coefficient were used to evaluate the spatiotemporal variations in water quality of Weihe River in Shaanxi Province.According to the water quality data collected at 26 monitoring sections from 2005 to 2010,the temporal and spatial trends of COD and NH3—N and the driving forces were analyzed respectively.The results indicated that the overall water quality has improved certainly as shown by the reduction of COD.The water quality of Baoji section was classified as of the third grade.However,the pollution level in the section from Xianyang to Weinan City was still quite high.The polluted tributaries and drainage outlets in the areas of Xi′an and Xianyang City contributed mainly the pollution in the mainstream.关键词
渭河流域/污染物/变化趋势Key words
Weihe basin/pollutants/changing trend分类
资源环境引用本文复制引用
关建玲,王蕾,裴晓龙,杨玉珍,杏艳,刘勇..渭河陕西段水体主要污染物变化趋势分析[J].水土保持通报,2012,32(6):51-54,60,5.
