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丹江口水库总氮监测与综合分析
引用本文:宋国强,张卫东,殷明,姜波.丹江口水库总氮监测与综合分析[J].环境科学与技术,2009,32(11).
作者姓名:宋国强  张卫东  殷明  姜波
作者单位:1. 湖北省环境监测中心站,湖北,武汉,430072
2. 丹江口市环境监测站,湖北,丹江口,442700
3. 十堰市环境监测站,湖北,十堰,442000
摘    要:在优级化布点基础上对丹江口水库汉江子库总氮浓度进行监测与综合分析。近几年丹江口水库总氮浓度稳定,进一步下降趋势不明显,2008年全库区总氮浓度仍超过GB3838-2002Ⅲ类标准限值,在湖北省地表水环境监测网水库中相对较高。其中,丰水期最高,平水期最低,库尾最高,面积较大的库湾最低。来自河流的外源污染是汉库总氮超标主要原因,与上游水土流失、农业面源污染、工业和城镇生活污染有关。建议进一步加强库内和集水区综合污染防治,加强包括该库底质在内的环境监测。

关 键 词:丹江口水库  汉江库区  总氮  监测  综合分析

Monitoring and Comprehensive Assessment of Total Nitrogen in Danjiangkou Reservoir
SONG Guo-qiang,ZHANG Wei-dong,YIN Ming,JIANG Bo.Monitoring and Comprehensive Assessment of Total Nitrogen in Danjiangkou Reservoir[J].Environmental Science and Technology,2009,32(11).
Authors:SONG Guo-qiang  ZHANG Wei-dong  YIN Ming  JIANG Bo
Abstract:Concentrations of total nitrogen (TN) in Hanjiang reservoir of Dangjiangkou Reservoir were monitored and comprehensive analyzed based on the optimized sampling points. The obtained TN concentrations in recent years were maintained at a certain level,without obvious decrease trend. TN concentration in 2008 was higher than the maximum permissible values of Environmental Quality Standard for Surface Water of GB3838-2002,which had a relatively high level in those of environmental monitoring network of surface water in Hubei Province,with TN as the highest content in wet period and at the end of reservoir while the lowest value in level period and at the largest bay. Outside contamination from rivers might be the most significant source of TN in the Reservoir of Han River,probably because of the upstream soil erosion,agricultural non-point source pollution as well as industrial and domestic effluents. Consequently,further pollution control of Danjiangkou Reservoir should be strengthened,including environmental monitoring of sediment in the Reservoir.
Keywords:Danjiangkou Reservoir  Hanjiang reservoir  total nitrogen(TN)  monitoring  evaluation
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