东平湖水环境质量综合评价  

Comprehensive evaluation of water environmental quality in Dongping Lake

作　　者：师吉华 李秀启 董贯仓 客涵 刘超 高云芳 

机构地区：[1]山东省淡水渔业研究院,山东济南250013

出　　处：《大连海洋大学学报》2015年第4期391-397,共7页Journal of Dalian Ocean University

基　　金：山东省科技厅科技攻关项目(2008GG10006023);山东省农业重大应用技术创新课题;山东省渔业厅资源修复项目;农业部物种资源保护(渔业)项目

摘　　要：为了评价东平湖的水环境质量,于2013年3月—11月,对东平湖水域p H、溶解氧(DO)、总氮(TN)、无机氮(DIN)、总磷(TP)、磷酸盐、高锰酸钾指数(CODMn)、石油类和叶绿素a(Chl-a)等指标进行了监测,并采用加权综合营养指数法和内梅罗指数法对水域环境质量状况进行了综合评价。结果表明:东平湖水域总体为轻度富营养,污染等级为Ⅲ级,属中度污染;主要污染因子依次为TN(年超标率92.86%)、TP(50.00%)和CODMn(25.00%),依据渔业水质标准,石油类超标100%;水环境质量时空差异显著,表现为3月>5月>11月>8月,湖心区及非养殖区水质好于入湖口和养殖区。该研究结果可为有效控制和治理东平湖水体污染与富营养化以及南水北调东线工程提供理论依据。The pH value, and levels of dissolved oxygen （DO）, total nitrogen （TN）, dissolved inorganic nitrogen （DIN）, total phosphorus （TP）, phosphate, chemical oxygen demand （COD）Mn, petroleum and Chl-a were moni- tored in Dongping Lake from March to November of 2013 and the water environment quality was comprehensively e-valuated using comprehensive trophic level index and Nemerow index. The results showed that water quality in Dongping lake was at the stage of mild eutrophication and moderate pollution with water quality Ⅲ standard. The predominant pollutant factors were TN, TP and CODMn, and the petroleum concentration was found over 100% of the fishery water quality standard. There were significant differences in temporal and spatial profiles of water envi- ronment quality parameters, as the following order： March 〉 May 〉 November 〉 August, better water quality in the central area and non-cultured area than in inlet area and cultured area. The findings provide certain scientific basis for treatment of the water pollution and eutrophication in Dongping Lake, and for achievement of East-Route South to North Water Transfer Project.

关 键 词：东平湖 水环境质量 综合营养状态指数 内梅罗指数 

分 类 号：X824[环境科学与工程—环境工程]