Evaluation of Environmental and Ecological Impacts of the Leading Large-Scale Reservoir on the Upper Reaches of the Yellow River

Jun Qiu, Tie-Jian Li and Fang-Fang Li
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Jun Qiu: State Key Laboratory of Hydroscience & Engineering, Tsinghua University, Beijing 100084, China
Tie-Jian Li: State Key Laboratory of Hydroscience & Engineering, Tsinghua University, Beijing 100084, China
Fang-Fang Li: College of Water Resources & Civil Engineering, China Agricultural University, Beijing 100083, China

Sustainability, 2019, vol. 11, issue 14, 1-14

Abstract: Large-scale reservoirs have played a significant role in meeting various water demands and socio-economic development, while they also lead to undeniable impacts on the environment and ecology. The Longyangxia reservoir located on the Yellow River is the first large-scale reservoir on the upper Yellow River with a control area of 18% of the entire Yellow River Basin. Since it was put into operation in 1987, it has made great contributions to the national economy for over 30 years. In this study, the socio-economic benefits of the Longyangxia reservoir in power generation, water supply, flood control, and ice prevention are investigated. More importantly, its impacts on the ecology and environment are also presented and analyzed, such as the impacts on river morphology, flow regimes, peak flow, fish, phytoplankton, and zooplankton. It can be concluded that the construction of the Longyangxia reservoir contributes greatly to socio-economic benefits, the water area nearby has formed a new ecological environment, and the trophic level of the aquatic environment has probably increased.

Keywords: large-scale reservoir; socio-economic benefit; ecological impact; environmental impact; the Longyangxia reservoir; the Yellow River (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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