人民珠江2024，Vol.45Issue(12)：39-47,9.DOI:10.3969/j.issn.1001-9235.2024.12.005
梯级水电开发对金沙江干流生态环境的累积影响
Cumulative Effect of Cascade Hydropower Development on Ecological Environment of Main Stream of Jinsha River
摘要
Abstract
With the surge of human demand for water resources and the increasing socio-economic development,cascade hydropower development has become the main form of efficient utilization of water resources and hydropower development.Cascade hydropower development entails the construction of a series of reservoirs,which change the river form and material and energy transfer process,and have a cumulative effect on river and terrestrial ecosystems.Taking the cascade hydropower development in the main stream of the Jinsha River as an example,the cumulative effect of cascade hydropower development on the ecological environment is analyzed from hydrological,physicochemical,and ecological aspects.In the hydrological aspect,it is revealed that after dam construction,conspicuous runoff flattening,significant sediment interception,and water temperature stratification occur.In the physicochemical aspect,the physical form,water quality,and climate change characteristics of the river are discussed.In the ecological aspect,the process of how cascade dams affect fish and other aquatic organisms in the river is clarified.Based on these three aspects,a cumulative effect evaluation index system has been established on the spatio-temporal scale.Moreover,the possible eco-environmental problems led by cascade hydropower development are analyzed from different perspectives,which can provide a reference for the health assessment of hydropower development.关键词
累积生态效应/梯级水电开发/河流生态系统/陆地生态系统/金沙江Key words
ecological cumulative effect/cascade hydropower development/river ecosystem/terrestrial ecosystem/Jinsha River分类
建筑与水利引用本文复制引用
周扬,杨珺..梯级水电开发对金沙江干流生态环境的累积影响[J].人民珠江,2024,45(12):39-47,9.基金项目
国家重点研发计划项目(2022YFC3202002) （2022YFC3202002）
国家自然科学基金(52209087、52379065) （52209087、52379065）
