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Evaluation of ecological water requirement based on hydrological cycle analysis
Wan Dong-Hui; Xia Jun; Song Xian-Fang; Liu Su-Xia
KeywordDecision Making Decision Theory Decision Trees Electric Breakdown Graphic Methods Groundwater Hydroelectric Power Hydrogeology Isotopes Remote Sensing River Pollution Rivers Space Optics Stream Flow Underground Reservoirs w
Source PublicationShuili Xuebao/Journal of Hydraulic Engineering
2008
Volume39Issue:8Pages:994-1000
AbstractA method for evaluating the ecological water requirement based on hydrological cycle analysis is suggested and the flow chart for calculation is designed. Field investigation and remote sensing interpretation are carried out to sum up the characteristics of ecological water demand. The amount of water sources and the hydraulic interaction among precipitation, surface water and groundwater are analyzed by applying environmental isotope technology. According to the objectives of ecological protection the suitable method for evaluating ecological water demand can be selected based on the comparison of different approaches. The proposed method is applied to calculate the ecological water requirement in Yalong River basin. The result shows that the river runoff of Yalong River is obtained from precipitation and the stream flow is supplied by groundwater unilaterally. The objectives of ecological protection for outside and inside of the river are maintaining the current vegetation area and satisfying the habitat conditions of growth and breeding of fishes. The current precipitation can sufficiently fulfill these requirements. The minimum stream discharge for ecological requirement at the dam site of Reba Hydro Project is in the range of 36.3m /s to 46.8m /s.
Indexed ByEI
Language英语
Document TypeEI期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/24578
Collection历年回溯文献
Recommended Citation
GB/T 7714
Wan Dong-Hui,Xia Jun,Song Xian-Fang,et al. Evaluation of ecological water requirement based on hydrological cycle analysis. 2008.
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