渭南师范学院学报Issue(10)：40-45,6.
渭河陕西段水环境质量评价
Evaluation of Water Environmental Quality of the Weihe River in Shaanxi Province
摘要
Abstract
The five indexes of each monitoring point inShaanxi section of the Weihe River in 2014 were analyzed by the com⁃prehensive analysis of the water pollution degree of weight and membership degree with the application of the improved fuzzy analytic hierarchy process. The result showed that the DO in Shaanxi section of the Weihe River were within class II of water quality stand⁃ards, the CODMn was within class III and the NH3-N was within class I, TN and TP were class V of water quality. The evaluation of single factor pollution index from small to large order was, respectively, TN, TP, CODMn, DO, NH3-N. Weight analysis showed that the total phosphorus (TP) and total nitrogen (TN) weights were all over 40%, which had the largest degree of impact on water quality. Analysis showed that the aquatic environment had improved significantly though the long-term prevention and treatment ai⁃ming at water pollution in Shaanxi section of the Weihe River in 2014, compared with the data of 2002, comprehensive pollution in⁃dex fell by 79.1%, the ammonia nitrogen, DO and CODMn were within class III of water quality standard, especially CODMn and NH3-N decreased respectively by 85.1% and 95.6%, total phosphorus and total nitrogen concentration is much lower than usual.关键词
渭河陕西段/水质评价/模糊层次分析法Key words
Shaanxi section of the Weihe River/water quality assessment/fuzzy analytic hierarchy process分类
资源环境引用本文复制引用
李平,向太吉,侯淑敏,王丰,问思恩,任惠丽..渭河陕西段水环境质量评价[J].渭南师范学院学报,2015,(10):40-45,6.基金项目
陕西省科技计划发展项目陕西水产规模化养殖及渔业资源与安全追溯研究（2013K01－62－02）；陕西省水利科技计划项目陕西黄河湿地生态环境修复技术研究 （）
