湖泊科学2011，Vol.23Issue(4)：513-519,7.
太湖微囊藻毒素时空分布特征及与环境因子的关系
Characteristic of microcystin distributions and its relationships with environmental factors in Lake Taihu
摘要
Abstract
In this paper, the high performance liquid chromatography( HPLC) was used to monitor the spatial and temporal distribution of dissolved Microcystin-LR and Microcystin-RR in Lake Taihu, and its relationship with physiochemical factors of the lake were also discussed. The results showed that the concentrations of microcystin( MCs) were not different between surface and bottom water in a day, and the highest concentration of microcystins occurred in winter. Concentrations of the MCs changed much during one year in the sampling sites NS and Nl which located in Zhushan Bay and the western part of Lake Taihu, respectively. Generally , the concentration of the MC-LR was higher than MC-RR for the year in average while the opposite results appeared in individual month of August and September. Correlation analysis showed that MC-LR was significantly positive correlated with TN, but did not show correlation with TP. During the period of water bloom of cyanobacteria, levels of the MC-LR were significantly positive correlated with TP, TN, UV254 , SS, total organic carbon and biomass of cyanobacteria, whereas MC-RR was not significant correlated with all the environmental factors in the statistical test.关键词
微囊藻毒素/太湖/环境因子/相关性Key words
Microcystin/ Lake Taihu/ environmental factors/ correlation引用本文复制引用
王经结,杨佳,鲜啟鸣,钱新,李正魁,耿金菊,孙成..太湖微囊藻毒素时空分布特征及与环境因子的关系[J].湖泊科学,2011,23(4):513-519,7.基金项目
国家“9737”计划项目(2008CB418003)和国家水体污染控制与治理科技重大专项(008ZX07421-002)项目联合资助. （2008CB418003）
