首页 > 过刊浏览>2019年第39卷第5期 >43-48. DOI:10.3880/j.issn.1006-7647.2019.05.007
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涡河中下游浮游植物时空分布及成因
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Q178.1

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安徽省水利科技计划(slkj2016-06)


Spatial and temporal distributions and the cause analysis of phytoplankton in the middle and lower reaches of Guo River
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    摘要:

    为探明涡河中下游水质状况，基于2016年12月至2017年9月涡河中下游4次监测的浮游植物和水质数据，利用物种优势度和多样性指数对浮游植物的时空分布特征进行定量分析。结果表明:涡河中下游的浮游植物主要表现出种类分布不均匀、不同河段差异性大等特点；涡河中下游共发现浮游植物7门89属种，以绿藻门和硅藻门为主；浮游植物的优势类群随季节变化较大，4次采样共发现16个优势物种，4个季节中绿藻门的优势种类均为最多；浮游植物Shannon-Wiener多样性指数水质评价等级显示涡河中下游整体污染程度呈转好趋势；冗余度分析表明环境因子对浮游植物时空分布总体变异的解释度为60.02%；温度、电导率和总磷是影响涡河中下游浮游植物时空分布的主要环境因子。

    Abstract:

    To evaluate the water quality in the middle and lower reaches of the Guo River, the spatial and temporal distribution characteristics of phytoplankton were quantitatively analyzed using species dominance and diversity indices methods based on four measuring data samples of phytoplankton and water quality from December 2016 to September 2017. The results show that the phytoplankton distributed unevenly in the main stream and differed greatly among different river sections. A total of 7 species and 89 genera of phytoplankton were found in the Guo River, in which Chlorophyta and Bacillariophyta were the main species. Furthermore, the dominant species of phytoplankton varied greatly with the seasons. A total of 16 dominant species were found in the four samples and those of Chlorophyta were the most in all four seasons. Shannon-Wiener diversity index evaluation grade reflects that the overall trend of water pollution was gradually improved. In addition, redundancy analysis results display that the environmental factors explained 60. 02% of the overall variation in spatial and temporal distributions of the phytoplankton. Moreover, temperature, conductivity and total phosphorus were the main environmental factors affecting spatial and temporal distributions of phytoplankton in the middle and lower reaches of the Guo River.

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梁建,路伟亭.涡河中下游浮游植物时空分布及成因[J].水利水电科技进展,2019,39(5):43-48.(LIANG Jian, LU Weiting. Spatial and temporal distributions and the cause analysis of phytoplankton in the middle and lower reaches of Guo River[J]. Advances in Science and Technology of Water Resources,2019,39(5):43-48.(in Chinese))

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