摘要
依据2008—2010年2年间江苏甪直镇河道水质监测资料,运用CWQI模型、多元统计方法和GIS技术对河道水质进行综合评价。结果表明:甪直镇水体总体上表现为N、P和有机污染,识别出洋泾港和金巷浜水质污染最严重,甫里塘、清晓江和田肚港水质较好;层次聚类分析显示该区域水质污染存在空间差异性并且监测断面可以简化,提出应采取河道分类整治措施,控源截污并加大河道连通性等综合手段进行整治。
Water-quality index modeling,hierarchical cluster analysis( HCA) were used to analyze data sets of river network water quality for 14 parameters monitored at 22 different sites in ancient town of Luzhi during 2008—2010. With the help of GIS platform,the quantitative evaluation of water quality and a comprehensive characterization of the existing monitoring network were studied. The results showed that TN,TP and organic pollutants were the major pollutants of river network in ancient town of Luzhi. The stations closed to farmers market or Urban villages,such as Yangjinggang and Jingxiangbang,had the highest pollution risk than the upstream; the HCA showed spatial variations of water pollution,meanwhile,the monitoring sections in the ancient town of Luzhi also could be simplified. Finally,it was proposed the measures like collecting the domestic sewage through network of drains and sending it to sewage treatment plant,dredging river,enchencing the communication between channels to improve the water quality.
出处
《环境工程》
CAS
CSCD
北大核心
2014年第10期61-65,共5页
Environmental Engineering
基金
国家科技重大专项“水体污染控制与治理”(2011ZX07301-003)
国家科技支撑计划课题(2012BAC19B03-005)
