小水电梯级开发的河流生态环境承载力研究--以秋香江为例  

Assessment of eco-environmental carrying capacity in the basin of small cascaded hydropower plants development:a case study of the Qiuxiangjiang River

作　　者：刘洁 肖旭 杨大勇 张丽娟 刘协亭[4] 陈晓宏[2] LIU Jie;XIAO Xu;YANG Dayong;ZHANG Lijuan;LIU Xieting;CHEN Xiaohong(Guangdong Academy of Social Sciences,Guangzhou Guangdong 510635;Center for Water Resources and Environment,Sun Yat-sen University,Guangzhou Guangdong 510275;South China Institute of Environmental Sciences,Ministry of Ecology and Environment,Guangzhou Guangdong 510535;Guangdong Hydropower Planning&Design Institute,Guangzhou Guangdong 510170)

机构地区：[1]广东省社会科学院,广东广州510635 [2]中山大学水资源与环境研究中心,广东广州510275 [3]生态环境部华南环境科学研究所,广东广州510535 [4]广东省水利电力勘测设计研究院,广东广州510170

出　　处：《环境污染与防治》2022年第10期1357-1361,共5页Environmental Pollution & Control

基　　金：水体污染控制与治理科技重大专项(No.2018ZX07601-002);广东省水利科技创新研究项目(No.2016-01);广东省社科基金资助项目(No.GD20CGL33)。

摘　　要：为探讨小水电梯级开发对河流生态环境的综合影响,建立了小水电梯级开发的生态环境承载力模型,计算了典型小水电梯级开发的秋香江生态环境承载力,通过历史和现状的对比分析主要影响因子。建立的模型综合考虑了水文情势、岸带陆域生态、水域生态3个系统层,秋香江小水电梯级开发对水域生态和水文情势的影响较大,沿岸社会经济发展、人口增长与水电梯级开发共同作用造成的水质污染是影响水域生态的重要原因,同时小水电梯级开发对河道造成阻隔,对鱼类资源的影响较大,对于流量虽有影响但仍能满足生态流量。To explore the comprehensive impacts of small cascaded hydropower plants development on the eco-environment of rivers,this paper established an eco-environmental carrying capacity model and calculated the eco-environmental carrying capacity for the Qiuxiangjiang River,which was a typical river with small cascaded hydropower plants developed.The main impact factors were analyzed through comparison between the history and status.The established model included three system layers:hydrological regime,bank land ecology and water ecology.The small cascaded hydropower plants development in Qiuxiangjiang River had significant impact on water ecology and hydrological regime.Water pollution caused by social-economic development,population expanding and hydropower plants development was the vital factor to impact water ecology.At the same time,obstruct impacted fish resources greatly.Flux was also impacted by obstruct,but it still met ecological flux.

关 键 词：小水电站梯级开发 生态环境承载力 秋香江 

分 类 号：X52[环境科学与工程—环境工程] TV742[水利工程—水利水电工程]