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引用本文:苟婷,许振成,李杰,马千里,王丽,赵学敏,梁荣昌,郭俊成.珠江流域西江支流贺江浮游藻类群落特征及水质分析.湖泊科学,2015,27(3):412-420. DOI:10.18307/2015.0307
GOU Ting,XU Zhencheng,LI Jie,MA Qianli,WANG Li,ZHAO Xuemin,LIANG Rongchang,GUO Juncheng.Phytoplankton community structure and water quality assessment of Hejiang River, a branch of Xijiang River, Pearl River drainage basin. J. Lake Sci.2015,27(3):412-420. DOI:10.18307/2015.0307
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珠江流域西江支流贺江浮游藻类群落特征及水质分析
苟婷,许振成,李杰,马千里,王丽,赵学敏,梁荣昌,郭俊成
作者单位E-mail
苟婷 环境保护部华南环境科学研究所, 广州 510655;兰州交通大学环境与市政工程学院, 兰州 730070  
许振成 环境保护部华南环境科学研究所, 广州 510655;兰州交通大学环境与市政工程学院, 兰州 730070  
李杰 兰州交通大学环境与市政工程学院, 兰州 730070  
马千里 环境保护部华南环境科学研究所, 广州 510655  
王丽 环境保护部华南环境科学研究所, 广州 510655  
赵学敏 环境保护部华南环境科学研究所, 广州 510655 zhaoxuemin@scies.org 
梁荣昌 环境保护部华南环境科学研究所, 广州 510655  
郭俊成 环境保护部华南环境科学研究所, 广州 510655  
摘要:
为了解珠江流域西江支流贺江浮游藻类的分布并评价其水质情况,于2013年丰水期和枯水期对贺江的浮游藻类群落结构进行调查和分析,结果表明:调查期间共检出浮游藻类7门130种,其中丰水期7门63种,枯水期5门103种,浮游藻类群落组成以绿藻门、硅藻门和蓝藻门为主,丰水期绿藻门居多,硅藻门次之,藻细胞丰度平均值为2.13×106cells/L;枯水期硅藻门最多,藻细胞丰度平均值为3.71×106cells/L;优势种主要有水华微囊藻、卷曲鱼腥藻、小颤藻、啮蚀隐藻、短小舟形藻、变异直链藻、颗粒直链藻、四尾栅藻、集星藻、小球衣藻和小球藻.RDA分析表明,影响贺江浮游藻类群落分布的主要环境因子是氮、磷营养盐,综合营养状态指数显示贺江处于中营养水平.
关键词:  贺江  浮游藻类  群落结构  环境因子  综合营养状态指数
DOI:10.18307/2015.0307
分类号:
基金项目:国家自然科学基金项目(41401115)、国家水体污染控制与治理科技重大专项(2014ZX07206-005-04)、贺江后评估项目(PM-ZX024-201402-023)和鹤地水库蓝藻水华监控与应急处置技术项目(PM-ZX022-201409-014)联合资助.
Phytoplankton community structure and water quality assessment of Hejiang River, a branch of Xijiang River, Pearl River drainage basin
GOU Ting,XU Zhencheng,LI Jie,MA Qianli,WANG Li,ZHAO Xuemin,LIANG Rongchang,GUO Juncheng
Abstract:
To study the distribution of phytoplankton and evaluate water quality of Hejiang River, a branch of Xijiang River, Pearl River drainage basin, the community structure of phytoplankton was investigated and analyzed in wet and dry seasons in 2013.The results showed that a total of 130 species belonging to seven phyla of phytoplankton was identified.Including 63 species of seven phyla in wet season and 103 species of five phyla in dry season, phytoplankton community structure in Hejiang River was represented by Chlorophyta, Bacillariophyta and Cyanophyta.Chlorophyta was dominant in wet season, followed by Bacillariophyta.The mean value of phytoplankton density was 2.13×106 cells/L.Bacillariophyta dominated the phytoplankton in dry season, and the mean value of phytoplankton density was 3.71×106cells/L.The dominant species were Microcystis flos-aquae, Anabaena circinalis, Oscillatoria tenuis, Cryptomonas erosa, Navicula exigua, Melosira varians, Melosira granulata, Scenedesmus quadricauda, Actinastrum hantzschii, Chlamydomonas microsphaera and Chlorella valgaris.Based on RDA analysis, nitrogen and phosphorus were important environmental factors that affected the distribution of phytoplankton in Hejiang River.The river was classified as mesotrophic according to comprehensive trophic state index.
Key words:  Hejiang River  phytoplankton  community structure  environmental factors  comprehensive trophic level index
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