山西汾河上中游流域水域生态系统质量评估
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摘要
本文以汾河上中游流域为研究区,通过采集底栖动物、鱼类等样品,结合监测数据分析流域水域生态系统健康状况。结果表明:汾河流域水质总体良好,但氨氮、化学需氧量和五日生化需氧量浓度长期超标,底栖动物种类呈现支流多于干流的规律;鱼类种类上、中游各科物种组成差异不显著;流域上游水域生态健康良好,中游太原段水质污染相对严重,需予以关注和重视。
According to the suvery on benthic animal and fish samples,combining with the monitoring data,we analyzed the health condition of aquatic ecosystem in upper and middle reaches of Fenhe River.The results showed that the water quality was generally good,but the concentration of NH_4-N,COD_(cr) and BOD_5 exceeded the standard for a long term which led to ecological environment problems.Species of benthic animals presented in the tributaries were greater than that in the river.The fish composition in the upstream and midstream was not of significant difference.The health condition of aquatic ecosystem in the upstream was good,while that in the middle stream was relatively severe.Thus,the ecosystem health of Fenhe River need to be emphasized.
According to the suvery on benthic animal and fish samples,combining with the monitoring data,we analyzed the health condition of aquatic ecosystem in upper and middle reaches of Fenhe River.The results showed that the water quality was generally good,but the concentration of NH_4-N,COD_(cr) and BOD_5 exceeded the standard for a long term which led to ecological environment problems.Species of benthic animals presented in the tributaries were greater than that in the river.The fish composition in the upstream and midstream was not of significant difference.The health condition of aquatic ecosystem in the upstream was good,while that in the middle stream was relatively severe.Thus,the ecosystem health of Fenhe River need to be emphasized.
引文
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[2]Ayensu.International ecosystem assessment.Science,2000,286(440):6851.
[3]张玉珍,黄文丹,王智苑,等.福建敖江流域水域生态系统健康评估[J].湖泊科学,2015,27(6):1079-1086.
[4]党晋华,赵颖,马晓勇,等.汾河水库上游流域土地利用类型变化特征及其水环境效应研究[J].水资源与水工程学报,2017,28(1):62-68.
[5]王建,陈晓东.山西汾河流域生态修复技术与对策探讨[A].环境保护与循环经济,2012,1674-1021.
[6]王金爽.盘锦滨海湿地生态系统质量遥感评估分析[A].农业科技与装备,2016,1674-1161.
[7]章宗涉,黄祥飞.淡水浮游生物研究方法[M].科学出版社,1995.
[8]环境保护部自然生态保护司.流域生态健康评估技术指南(试行)[S].2013.