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三峡水库香溪河库湾冬季甲藻水华生消机理初探

姚绪姣 刘德富 杨正健 纪道斌 方小凤

姚绪姣, 刘德富, 杨正健, 纪道斌, 方小凤. 三峡水库香溪河库湾冬季甲藻水华生消机理初探[J]. 环境科学研究, 2012, 25(6): 645-651.
引用本文: 姚绪姣, 刘德富, 杨正健, 纪道斌, 方小凤. 三峡水库香溪河库湾冬季甲藻水华生消机理初探[J]. 环境科学研究, 2012, 25(6): 645-651.
YAO Xu jiao, LIU De fu, YANG Zheng jian, JI Dao bin, FANG Xiao feng. Preliminary Studies on the Mechanism of Winter Dinoflagellate Bloom in Xiangxi Bay of the Three Gorges Reservoir[J]. Research of Environmental Sciences, 2012, 25(6): 645-651.
Citation: YAO Xu jiao, LIU De fu, YANG Zheng jian, JI Dao bin, FANG Xiao feng. Preliminary Studies on the Mechanism of Winter Dinoflagellate Bloom in Xiangxi Bay of the Three Gorges Reservoir[J]. Research of Environmental Sciences, 2012, 25(6): 645-651.

三峡水库香溪河库湾冬季甲藻水华生消机理初探

基金项目: 国家自然科学基金项目(51179095);国家杰出青年科学基金项目(50925932);国家自然基金青年科学基金项目(51009080)

Preliminary Studies on the Mechanism of Winter Dinoflagellate Bloom in Xiangxi Bay of the Three Gorges Reservoir

  • 摘要: 2010年1—2月在香溪河库湾上、中、下游各选取1个监测点对水体环境因子及藻类进行监测,对水温、营养盐含量等进行分析,探讨香溪河库湾冬季甲藻水华的生消机理. 结果表明:2010年冬季,香溪河库湾末端暴发了甲藻水华,持续44 d,优势藻种为拟多甲藻(Peridiniopsis sp.),最高细胞密度达到11.8×106 L-1;适宜的水温、充足的营养盐以及良好的光照、弱分层水体是香溪河库湾冬季甲藻水华暴发的主要原因;Zmix/Zeu〔Zmix(混合层深度)与Zeu(真光层深度)之比〕在2~3之间时有利于甲藻生长;库湾中下游因水体掺混强烈而在冬季未暴发水华;后期水体分层状态的加强及Zmix/Zeu的减小是甲藻水华消失的主要原因.

     

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  • 刊出日期:  2012-06-25

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