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题名: Influence of cascaded exploitation of small hydropower on phytoplankton in Xiangxi River.
作者: Wu Nai-cheng ; Tang Tao ; Zhou Shu-chan ; Fu Xiao-cheng ; Jiang Wan-xiang ; Li Feng-qing ; Cai Qing-hua (qhcai@ihb.ac.cn)
通讯作者: Wu Nai-cheng ; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
刊名: Yingyong Shengtai Xuebao
发表日期: 2007
卷: 18, 期:5, 页:1091-1096
收录类别: 其他
英文摘要: With the five small hydropowers (SHPs) from up- to downstream of Xiangxi River as test objects, this paper studied the influence of SHPs cascaded exploitation on the phytoplankton in the river. The results showed that phytoplankton assemblages were dominated by diatoms, occupying 95. 54% of the total number of species. Achnanthes linearis, A. lanceolata var. elliptica and Cocconeis placentula were the most abundant species, with the relative abundance being 23. 96%, 18. 62% and 12. 48%, respectively. The average algal density at 25 sampling sites was 6. 29 x 10(5) ind center dot L-1, with the maximum of 1. 81 x 10(6) ind center dot L-1 and the minimum of 2. 35 x 10(5) ind center dot L-1. Two-way ANOVA indicated that water flow velocity was the main factor affecting the phytoplankton. The establishment of the cascaded SHPs on the river made the habitat of lower reach has a significant difference with the others, resulting in a dramatic change of many parameters including Margalef diversity index, species richness, generic richness, taxonomic composition, and the percentage of diatoms.
ISSN号: 1001-9332
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18261
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Recommended Citation:
Wu Nai-cheng; Tang Tao; Zhou Shu-chan; Fu Xiao-cheng; Jiang Wan-xiang; Li Feng-qing; Cai Qing-hua (qhcai@ihb.ac.cn).Influence of cascaded exploitation of small hydropower on phytoplankton in Xiangxi River.,Yingyong Shengtai Xuebao,2007,18(5):1091-1096
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