武宜运河小流域平原河网地区水环境质量现状分析及改善对策研究

摘要

This paper analyzed four routine water quality monitoring sections of the Wuyi Canal from 2011 to 2013, the results show that the water pollution of Wuyi Canal is reducing year by year .Forty-two water quality monitoring sections were selected in small watershed of Wuyi River, fourteen of which were set along the Wuyi Canal and the others in the related river of Wuyi ca-nal.According to the result, the water quality of the whole Wuyi Canal belongs to water standard Ⅴ ~inferior Ⅴ.The overall re-sult in Yixing is slightly better than that of Wujin .The water quality of the relevant river basically belongs to water standard Ⅲ~Ⅴ.Now the TN pollution is the main pollution of the area , the TN is excessive and is the most severe.Found out the present situ-ation of the water quality in watershed region water in Wu Yi Canal .Put forward the countermeasures and suggestions to improve the water quality from the industrial, life, agricultural non-point source, marine pollution, etc and laid the foundation to carry out comprehensive improvement which is of great significance to improve the water environment.%文章分析了武宜运河沿线4个例行监测断面2011年至2013年水质变化情况,结果表明武宜运河水质污染情况逐年减轻.在武宜运河流域布设了42个监测断面,其中武宜运河沿程布设14个监测断面,相关河流布设28个监测断面.监测结果表明,武宜运河全线水质属于Ⅴ类~劣Ⅴ类,水质总体上表现为宜兴段稍好于武进段.相关河道水质基本属于Ⅲ类~劣Ⅴ类.目前该区域水质污染以总氮污染为主,且总氮超标最为严重.掌握了武宜运河小流域河网地区的水环境质量现状,从工业、生活、农业面源、船舶污染等方面提出了改善水环境质量的建议对策,为开展综合整治奠定了基础,对改善流域水环境具有十分重要的意义.