生态与农村环境学报2013，Vol.29Issue(3)：273-277,5.
河口前置库系统在滆湖富营养化控制中的应用研究
Application of Estuary Pre-Dam to Eutrophication Control in Gehu Lake
摘要
Abstract
Effects of the pre-dam system built in the northwest of the Gehu Lake,where the Xiaxi River and the Biandan River merge and flow into the lake,were investigated.Results show that the effects of the system were significant on removing of N,P and algae from inflow rivers.During the stable period,the pre-dam system raised the quality of the inflow water from Category Ⅴ minus to Category Ⅲ-Ⅳ,and reduced the concentrations of TN (total nitrogen) and TP (total phosphorus) from 1.21-3.09 and 0.05-0.24 mg · L-1 to 0.62-1.26 and 0.03-0.09 mg · L-1,respectively,with average TN and TP removal rates being around 60％.For algae,the concentration of Chl-a (chlorophyll-a) was lowered from 15.10-126.07 to 4.32-42.95 mg · m-3,with average removal rate being (67.55 ± 3.06)％,and maximum removal rate reaching 82.82％.Besides,within the system,the effects of the storage buffer zone removing TN,TP and Chl-a were more obvious than those of the other zones (P ＜ 0.05).In the same zone inconsistent in water quality index,only the ecological stable sub-zone had an obvious effect on controlling Chl-a,and differed significantly from the other sub-zones in TN and TP removing effect(P ＜0.05).关键词
前置库/入湖河流/富营养化/滆湖Key words
pre-dam/inflow river/eutrophication/Gehu Lake分类
资源环境引用本文复制引用
张毅敏,段金程,晁建颖,杨阳,周创..河口前置库系统在滆湖富营养化控制中的应用研究[J].生态与农村环境学报,2013,29(3):273-277,5.基金项目
国家"十一五"水体污染控制与治理科技重大专项(2008ZX07101-007) （2008ZX07101-007）
