| 天鹅洲长江段浮游植物群落季节演替及环境因子研究 |
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| 引用本文： | 胡俊,龚成,夏纬,池仕运,陈明秀,李嗣新.天鹅洲长江段浮游植物群落季节演替及环境因子研究[J].海洋与湖沼,2018,49(1):70-77. |
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| 作者姓名： | 胡俊 龚成 夏纬 池仕运 陈明秀 李嗣新 |
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| 作者单位： | 水利部中国科学院水工程生态研究所 水利部水工程生态效应与生态修复重点实验室 武汉 430079,湖北长江天鹅洲白鱀豚国家级自然保护区管理处 石首 434400,长江航道局 武汉 430060,水利部中国科学院水工程生态研究所 水利部水工程生态效应与生态修复重点实验室 武汉 430079,水利部中国科学院水工程生态研究所 水利部水工程生态效应与生态修复重点实验室 武汉 430079,水利部中国科学院水工程生态研究所 水利部水工程生态效应与生态修复重点实验室 武汉 430079 |
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| 基金项目： | 国家自然科学基金项目，51409178号；水利部公益性行业科研专项，201201113号。 |
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| 摘 要： | 通过研究长江天鹅洲白鱀豚国家级自然保护区长江段浮游动植物群落组成及其与环境因子之间的关系,揭示长江干流浮游植物群落的结构特征,以期为该区域生态系统保护与研究工作提供基础资料和科学依据。2014—2015年按季节分四次在干流沿途设置的10个采样点开展了浮游植物调查,并同步开展水温、溶解氧、总磷等水质因子监测,并采用典范对应分析(canonical correspondence analysis,CCA)研究了不同季节浮游植物群落结构变化及其与环境因子的关系。结果表明:浮游植物种类以硅藻、绿藻和蓝藻为主;全年来看生物量组成主要是硅藻和隐藻,不过春秋季时蓝绿藻密度组成占优。CCA分析则进一步显示浮游植物群落组成四季变化明显,其中磷酸盐、溶解氧和氧化还原位等水质因子对春季浮游植物群落结构存在显著的影响,但是夏冬季的浮游植物群落变化则可能是水文情势等条件起到了重要作用。
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| 关 键 词： | 长江 浮游植物 群落结构 环境因子 典范对应分析 |
| 收稿时间： | 2017/4/12 0:00:00 |
| 修稿时间： | 2017/6/2 0:00:00 |
STUDY ON PHYTOPLANKTON COMMUNITY STRUCTURE AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS IN TIAN'E SECTION, CHANGJIANG RIVER |
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| HU Jun,GONG Cheng,XIA Wei,CHI Shi-Yun,CHEN Ming-Xiu and LI Si-Xin.STUDY ON PHYTOPLANKTON COMMUNITY STRUCTURE AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS IN TIAN''E SECTION, CHANGJIANG RIVER[J].Oceanologia Et Limnologia Sinica,2018,49(1):70-77. |
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| Authors: | HU Jun GONG Cheng XIA Wei CHI Shi-Yun CHEN Ming-Xiu and LI Si-Xin |
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| Institution: | Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Key Laboratory of Ecological Impacts of Hydraulic-Project and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Wuhan 430079, China,Baiji National Nature Reserve Management Office of Xintankou-Luoshan of the Yangtze River in Hubei Section, Shishou 434400, China,Changjiang Waterway Bureau, Wuhan 430060, China,Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Key Laboratory of Ecological Impacts of Hydraulic-Project and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Wuhan 430079, China,Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Key Laboratory of Ecological Impacts of Hydraulic-Project and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Wuhan 430079, China and Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Key Laboratory of Ecological Impacts of Hydraulic-Project and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Wuhan 430079, China |
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| Abstract: | The phytoplankton community structure and its relationship with the environmental factors was studied in four seasons in the Tian''e (Swan) Section, a part of the nature reserve for white dolphin, in the middle reach of Changjiang (Yangtze) River, to reveal the community characteristics of phytoplankton and further provide data for ecological protection and research in the area. From 2014 to 2015, an investigation was quarterly carried out in 10 sampling sites along the section and water quality factors such as water temperature, dissolved oxygen and total phosphorus were synchronously measured. Canonical correspondence analysis (CCA) was applied to analyze the phytoplankton community structure and its relationship with the environmental factors in the four seasons. The results show that the main species of phytoplankton were diatoms, chlorophytes and cyanobacteria; the diatoms and cryptophytes were dominant in the biomass composition in the whole year, but the chlorophytes and cyanobacteria were dominant in the density composition in spring and autumn. CCA analysis further indicated that the total phosphorus, dissolved oxygen and oxidation reduction potential (ORP) significantly affected the phytoplankton community structure in spring, while the hydrological factors could play a more important role in summer and winter. |
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| Keywords: | Changjiang River phytoplankton community structure environmental factors canonical correspondence analysis (CCA) |
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