| 三峡水库汛期运行对长江干支流浮游植物的影响 |
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| 引用本文： | 朱爱民,程郁春,周连凤,李嗣新.三峡水库汛期运行对长江干支流浮游植物的影响[J].水生态学杂志,2018,39(5):22-30. |
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| 作者姓名： | 朱爱民 程郁春 周连凤 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 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2009ZX07528-003）。 |
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| 摘 要： | 为了探究三峡水库175m蓄水后工程运行对库区浮游植物影响,于汛期对长江干流及其25条支流浮游植物进行了调查,长江干流上游至下游共设朱沱、丰收坝、寸滩等13个采样点,綦江、嘉陵江、五布河等25条长江支流共设94个采样点。结果表明:(1)干流145m淹没河段,硅藻种类比例明显降低,蓝藻、绿藻、甲藻、隐藻种类比例明显升高,但主要种类组成仍为硅藻-绿藻-蓝藻型;现存量升高不明显,硅藻比例明显降低、蓝藻比例明显升高;出现蓝藻优势种类且占比最高,硅藻优势种类占比下降,但仍为最高优势度种类,且最高其优势度基本不变;浮游植物Shannon-Wiener多样性指数(H′)、Pielou均匀性指数(J)下降不明显;(2)145m未淹没支流,175m淹没河段重新恢复为自然河流状态,其浮游植物群落也恢复到自然河流状态;(3)145m淹没支流河口,浮游植物种类组成特点明显改变;现存量明显升高,其组成发生较大变化;硅藻优势种类占比、最高优势度明显下降,绿藻、蓝藻、隐藻、甲藻等优势种类相应升高;H′和J明显降低;(4)从上游至下游,干流和25条支流河口硅藻种类比例由最高到最低变化,蓝藻、绿藻种类比例由较低到最高变化。
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| 关 键 词： | 三峡水库 汛期运行 长江干流 支流 浮游植物 |
| 收稿时间： | 2016/11/15 0:00:00 |
| 修稿时间： | 2018/9/14 0:00:00 |
Impact of the Operation of Three Gorges Reservoir during Wet Season on Phytoplankton in Main Stem of Yangtze River and Its Tributaries |
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| ZHU Ai-min,CHENG Yu-chun,ZHOU Lian-feng and LI Si-xin.Impact of the Operation of Three Gorges Reservoir during Wet Season on Phytoplankton in Main Stem of Yangtze River and Its Tributaries[J].Journal of Hydroecology,2018,39(5):22-30. |
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| Authors: | ZHU Ai-min CHENG Yu-chun ZHOU Lian-feng and LI Si-xin |
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| Institution: | Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, P.R.China,Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, P.R.China,Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, P.R.China and Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan 430079, P.R.China |
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| Abstract: | |
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| Keywords: | Three Gorges Reservoir operation in wet season main stem of Yangtze River tributary phytoplankton variation |
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