| 太湖梅梁湾水体微囊藻毒素含量的季节变化特征及其影响因素研究 |
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| 引用本文： | 高振美,赵中华,张波,张路.太湖梅梁湾水体微囊藻毒素含量的季节变化特征及其影响因素研究[J].生态环境,2011(6):1063-1067. |
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| 作者姓名： | 高振美 赵中华 张波 张路 |
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| 作者单位： | [1]中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室 ,江苏南京210008 [2]中国科学院研究生院,北京100049 |
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| 基金项目： | 国家自然科学基金项目（40971253）; 科技部基础性工作专项项目（2006FY110600） |
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| 摘 要： | 采用高效液相色谱法对太湖梅梁湾水体中微囊藻毒素的质量浓度进行春、夏、秋、冬4个季节的监测,分析了梅梁湾水体中微囊藻毒素（MC-RR,MC-YR,MC-LR）质量浓度的季节变化特征及其与水体中总氮、总磷、CODMn和浮游藻类等富营养化指标的相关关系。分析结果表明：MCs夏季（8月份）质量浓度最高,为（0.78±0.99）μg.L-1,其次为春季（5月份）和秋季（11月份）,分别为（0.43±0.96）和（0.50±1.12）μg.L-1,冬季（2月份）质量浓度显著降低,为（0.14±0.27）μg.L-1;水体中MCs的检出质量浓度与常规水化学指标之间相关性分析表明：MC-LR的质量浓度与TP的质量浓度呈极显著正相关与TN/TP呈极显著负相关（P〈0.01）,与CODMn呈显著正相关（P〈0.05）;水体中MCs的检出质量浓度与浮游藻类生物量相关性分析表明：水体中MCs的检出质量浓度与微囊藻及蓝藻生物量有显著相关关系,太湖梅梁湾的藻毒素主要由微囊藻属（Microcystis）产生。
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| 关 键 词： | 梅梁湾 微囊藻毒素 季节性 富营养化 影响因素 |
Seasonal variation of microcystins concentration and influencing factors in Meiliang Bay,Lake Taihu |
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| GAO Zhenmei,ZHAO Zhonghua,ZHANG Bo,ZHANG Lu.Seasonal variation of microcystins concentration and influencing factors in Meiliang Bay,Lake Taihu[J].Ecology and Environmnet,2011(6):1063-1067. |
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| Authors: | GAO Zhenmei ZHAO Zhonghua ZHANG Bo ZHANG Lu |
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| Institution: | 1.State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;2.Graduate University of Chinese Academy o f Sciences,Beijing 100049,China |
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| Abstract: | The high performance liquid chromatography（HPLC）was used to detect the concentration of microcystins（MCs） in Meili-ang Bay,Taihu Lake for four seasons.The paper analysed the variation trends of MCs（MC-RR,MC-YR,MC-LR）concentration and the relationships between MCs and total nitrogen（TN）,total phosphorus（TP）,CODMn,Phytoplankton.The results indicated that the concentrations of MCs were（0.43±0.96）,（0.78±0.99）,（0.50±1.12） and（0.14±0.27）μg·L-1 of spring（May）,summer（August）,autumn（November） and winter（February）,respectively.According to correlation analysis,the concentration of MC-LR had a very signifi-cantly positive correlation with TP,a very significantly negative correlation with TN/TP（P0.01）,and had a significantly positive correlation with CODMn（P0.05）.The concentration of MCs had some significantly positive correlations with biomass of Microcys-tis and cyanobacteria,and MCs were producted by Microcystis mainly. |
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| Keywords: | Meiliang Bay Microcystin seasonal eutrophication influencing factors |
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