综合整治工程对滇池流域典型城市河流采莲河水质及生态的影响  

The Effect of Comprehensive Regulation Project on Water Quality and Ecology of Cailian River a Typical Urban River in Dianchi Watershed

作　　者：魏冉[1] 张先智[1] 黄可[1] 李金花[1] 金竹静[2] 孔德平[2] 杨逢乐[2] 周保学[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240 [2]云南省环境科学研究院,昆明650034

出　　处：《复旦学报（自然科学版）》2015年第4期416-422,共7页Journal of Fudan University：Natural Science

基　　金："十一五"国家重大水专项课题(2009ZX07102-003);"十二五"国家重大水专项课题(2012ZX07102-002)

摘　　要：采莲河是滇池流域典型的城市河流,是昆明市城区的主要纳污河道,为滇池污染物的重要来源.为了治理滇池流域污染,昆明市政府于2010年完成了包括采莲河沿岸截污、水生生态修复等系列综合整治工程.以采莲河为例,通过对采莲河水质、浮游动物以及底栖的追踪调查研究,对综合治理后采莲河的水质改善状况和生态现状进行了分析评估.结果表明,经过综合整治之后,采莲河水质明显改善,其中入湖口处CODCr,BOD5,NH3-N,TN,TP与2007年相比分别下降了56%,48%,50%,47.5%和67.6%,主河段水质已经达到地表水Ⅵ类标准;由于水质的改善,采莲河共检测到浮游动物91种,平均密度为812.29ind/L,平均生物量为821g/L;底栖动物共监测到14种,平均密度为1 008.7ind/m2,平均生物量为13.40g/m2.研究表明综合整治工程对城市河流的治理具有明显的环境效益,滇池流域河流的综合整治工程为高原湖泊河流的治理提供了经验.As a typical urban river in Dianchi watershed, Cailian River is the main pollutant receiving channels in the south area of Kunming City, and it becomes a main pollutant source for Dianchi Lake. Kunming City government has completed the comprehensive regulation project in Caiian River by 2010, including sewage interception project and ecological project etc. Throughthe tracing investigation on water quality, zooplankton and zoobenthos in Cailian River, the change about water quality before and after treatment completed and ecological status analyzed in detail. The results show that the water quality improved obviously, compared with 2007, the concentration of COD Cr, BODs, NH^-N, TN and TP in lake inlet decreased by 56%, 48%, 50%, 47. 5% and 67.6%, the main reach achieved the surface water class IV standard. The species numbers, average density and biomass of zooplankton in Cailian River were 91, 812.29 ind/L and 821 g/L respectively; the species numbers, density and biomass of zoobenthos were 141 008. 7 ind/m2 and 13. 40 g/m2 respectively. The results indicate that the comprehensive regulation project brings notable environmental benefit for the treatment of urban river.

关 键 词：采莲河 水质 浮游动物 底栖动物 环境效益 

分 类 号：X321[环境科学与工程—环境工程]