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洞庭湖近20年水质与富营养化状态变化

黄代中 万群 李利强 汪铁 卢少勇 欧伏平 田琪

黄代中, 万群, 李利强, 汪铁, 卢少勇, 欧伏平, 田琪. 洞庭湖近20年水质与富营养化状态变化[J]. 环境科学研究, 2013, 26(1): 27-33.
引用本文: 黄代中, 万群, 李利强, 汪铁, 卢少勇, 欧伏平, 田琪. 洞庭湖近20年水质与富营养化状态变化[J]. 环境科学研究, 2013, 26(1): 27-33.
HUANG Dai-zhong, WAN Qun, LI Li-qiang, WANG Tie, LU Shao-yong, OU Fu-ping, TIAN Qi. Changes of Water Quality and Eutrophic State in Recent 20 Years of Dongting Lake[J]. Research of Environmental Sciences, 2013, 26(1): 27-33.
Citation: HUANG Dai-zhong, WAN Qun, LI Li-qiang, WANG Tie, LU Shao-yong, OU Fu-ping, TIAN Qi. Changes of Water Quality and Eutrophic State in Recent 20 Years of Dongting Lake[J]. Research of Environmental Sciences, 2013, 26(1): 27-33.

洞庭湖近20年水质与富营养化状态变化

基金项目: 全国重点湖泊水库生态安全保障方案项目(WFLY-2009-01-PG05);2011年湖南省环保科技计划项目

Changes of Water Quality and Eutrophic State in Recent 20 Years of Dongting Lake

  • 摘要: 利用近20年水质监测资料,系统地分析了洞庭湖水质与营养状态的时空变化特征. 结果表明,受流域社会经济发展等因素的综合影响,洞庭湖水质整体呈下降趋势,水体富营养化日趋严重,东洞庭湖的富营养程度稍高于西洞庭湖和南洞庭湖. 洞庭湖水体主要污染物为TN和TP, ρ(TN)、ρ(TP)年均值分别为1.08~1.93和0.026~0.203 mg/L. 洞庭湖水体中ρ(Chla)与ρ(TN)呈显著正相关;浮游植物数量与ρ(TN)、ρ(TP)呈显著正相关,与最大流量呈显著负相关. 2007年洞庭湖流域造纸企业污染整治后,洞庭湖水体中ρ(CODCr)降低,但ρ(TN)、ρ(TP)仍呈上升之势,浮游植物数量显著增加. 洞庭湖水体富营养化治理应以控制面源污染为重点.

     

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出版历程
  • 收稿日期:  2012-06-06
  • 修回日期:  2012-10-24
  • 刊出日期:  2013-01-25

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