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太湖微囊藻毒素的时空分布特征

王靖国 邹 华 张 强 陈琳荔 王 震

王靖国, 邹 华, 张 强, 陈琳荔, 王 震. 太湖微囊藻毒素的时空分布特征[J]. 环境科学研究, 2014, 27(7): 696-703.
引用本文: 王靖国, 邹 华, 张 强, 陈琳荔, 王 震. 太湖微囊藻毒素的时空分布特征[J]. 环境科学研究, 2014, 27(7): 696-703.
WANG Jing-guo, ZOU Hua, ZHANG Qiang, CHEN Lin-li, WANG Zhen. Spatial and Temporal Distribution of Microcystin in Taihu Lake[J]. Research of Environmental Sciences, 2014, 27(7): 696-703.
Citation: WANG Jing-guo, ZOU Hua, ZHANG Qiang, CHEN Lin-li, WANG Zhen. Spatial and Temporal Distribution of Microcystin in Taihu Lake[J]. Research of Environmental Sciences, 2014, 27(7): 696-703.

太湖微囊藻毒素的时空分布特征

基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07101,2012ZX07503)

Spatial and Temporal Distribution of Microcystin in Taihu Lake

  • 摘要: 微囊藻毒素对水体危害严重,为了探究太湖中微囊藻毒素的变化规律及其主要环境影响因子,对太湖34个采样点进行了为期1 a(2011年11月—2012年10月)的监测与采样,分析了水体中ρ(MCs)(MCs为微囊藻毒素)〔包括ρ(TMC)(TMC为总藻毒素)、ρ(EMC)(EMC为胞外藻毒素)和ρ(IMC)(IMC为胞内藻毒素)〕,以及ρ(Chla)、蓝藻生物量、ρ(TN)、ρ(TP)、N/P〔ρ(TN)/ρ(TP)〕、pH、温度、透明度、电导率、ρ(DO)等水环境因子的变化特征,讨论了ρ(MCs)与各水环境因子之间的相关性. 结果表明:ρ(MCs)在太湖中呈现一定的规律性,在7—8月蓝藻爆发期,ρ(MCs)低于0.10 μg/L,之后逐渐升高,9月达到最高值(0.28 μg/L). 受地理位置和沉积环境等影响,太湖西北区MCs污染最严重,ρ(MCs)最大值为0.30 μg/L. 相关性分析结果表明,ρ(MCs)与ρ(Chla)、ρ(TN)、ρ(TP)、N/P显著相关,其中,ρ(MCs)与ρ(Chla)呈极显著正相关(P<0.01);ρ(IMC)和ρ(TMC)均与蓝藻生物量呈显著正相关(P<0.05),而ρ(EMC)与蓝藻生物量相关性不显著;ρ(IMC)和ρ(TMC)均与ρ(TN)呈极显著负相关(P<0.01),而ρ(EMC)与ρ(TN)呈显著负相关(P<0.05);ρ(MCs)与ρ(TP)呈显著正相关,而与N/P呈显著负相关(P<0.05).

     

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出版历程
  • 收稿日期:  2013-10-15
  • 修回日期:  2014-03-12
  • 刊出日期:  2014-07-25

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