秋香江水电梯级开发对鱼类资源 影响的调查研究  

Investigation and Assessment of the Influence of Cascaded Hydropower Plants on Fish Resources in the Qiuxiangjiang River

作　　者：刘洁 陈兰 崔科[3] 张丽娟 刘协亭[5] 李歆 胡国成 LIU Jie;CHEN Lan;CUI Ke;ZHANG Lijuan;LIU Xieting;LI Xin;HU Guocheng(Guang Dong Academy of Social Sciences,Guangzhou 510635,China;South China Institute of Environmental Sciences,Ministry of Ecology and Environment,Guangzhou 510535,China;South China Agricultural University,Guangzhou 510642,China;State Key Laboratory of Environmental Protection and Environmental Pollution Health Risk Assessment,Guangzhou 510535,China;Guangdong Hydropower Planning&Design Institute,Guangzhou 510170,China)

机构地区：[1]广东省社会科学院,广东广州510635 [2]生态环境部华南环境科学研究所,广东广州510535 [3]华南农业大学,广东广州510642 [4]国家环境保护环境污染健康风险评价重点实验室,广东广州510535 [5]广东省水利电力勘测设计研究院,广东广州510170

出　　处：《人民珠江》2020年第12期7-14,共8页Pearl River

基　　金：广东省水利科技创新研究项目(2016-01);国家水体污染控制与治理科技重大专项(2018ZX07601-002)。

摘　　要：中小河流水电梯级开发对鱼类资源影响显著,主要表现为鱼类栖息环境的破坏。通过对广东省东江一级支流秋香江进行水生态调查与采样分析,对秋香江的鱼类资源现状进行了评估,并与历史资料进行对比研究,结果表明:由于秋香江流域水电梯级开发和其他人类活动导致鱼类缺乏合适的栖息环境,鱼类的种类和数量与历史记录相比急剧减少;鱼类种群结构较不稳定;鱼类多样性也逐渐降低。中小河流水电梯级开发应注重对整个流域进行统筹规划,保护河流水生态系统的完整性,严格要求水电站建设泄流设施并对其运行情况加强监管。The development of cascaded hydropower plants in middle and small rivers has a significant impact on fish resources,mainly includes the destruction of fish habitat.The Qiuxiangjiang River belongs to the first-class tributary of the Dongjiang River in Guangdong Province.This paper evaluates the present situation of fish resources in the Qiuxiangjiang River by aquatic ecosystem investigation and sampling analysis,and compares it with historical data.The results show that due to cascade hydropower development and other human activities in the Qiuxiangjiang River Basin,the suitable habitat for fish decreases.The species and numbers of fish decrease sharply compared with historical records.The fish population structure is relatively unstable,and the fish diversity also gradually reduces.Therefore,for the cascade hydropower development in middle and small rivers,attention should be paid to overall planning the entire river basin,protecting the integrity of the river's aquatic ecosystem,and strictly requiring hydropower plants to build discharge facilities and strengthen supervision of their operation.

关 键 词：中小河流 梯级水电 水生态 鱼类资源 

分 类 号：TV213.2[水利工程—水文学及水资源]