Evaluation of ecological water requirement based on hydrological cycle analysis
文献类型：EI期刊论文
| 作者 | Xia Jun; Song Xian-Fang; Liu Su-Xia |
| 发表日期 | 2008 |
| 关键词 | Decision 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 |
| 英文摘要 | A 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. |
| 出处 | Shuili Xuebao/Journal of Hydraulic Engineering
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| 卷 | 39期:8页:994-1000 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24578]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Xia Jun,Song Xian-Fang,Liu Su-Xia. Evaluation of ecological water requirement based on hydrological cycle analysis. 2008. |
入库方式： OAI收割
来源：地理科学与资源研究所
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