Use of oxygen-18 isotope to quantify flows in the upriver and middle reaches of the Heihe River, northwestern china
文献类型：EI期刊论文
| 作者 | Zhang Y. H. ; Song X. F. ; Wu Y. Q. |
| 发表日期 | 2009 |
| 关键词 | Agricultural runoff Groundwater Hydrogeology Ice Isotopes Oxygen Plants (botany) Snow melting systems |
| 英文摘要 | In recharge areas, the Heihe River flow was separated into components of ice-snowmelt and precipitation according to 14 gauging stations and to monthly hydrograph using oxygen-18. As shown by the result of the two-component mixing model, on average, 19.8% of the runoff comes from ice-snowmelt. At three stations which are closer to glaciers and with headstream of ice-snow melted water, the ice-snowmelt runoff is larger than 28% of stream water. In addition, because most of the ice-snowmelt infiltrates the groundwater, which later discharges into the river at mountain outlets, the ice-snowmelt percentage in runoff is lower than average at these stations with the elevation higher than 3,600 m. According to monthly hydrograph, the lowest percentage of ice-snowmelt in runoff is in July (6.46%), whereas during November it is the largest (26.1%). In the middle basin, the fraction of groundwater in runoff had a marked increase from 23.57% near Zhangye City to 60.28% near Gaotai City, and then a dramatic drop to 13.61% near Zhengyixia Station because of agricultural flood irrigation in Zhangye Basin. © Springer-Verlag 2008. |
| 出处 | Environmental Geology
 |
| 卷 | 58期:3页:645-653 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24364]  |
| 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 | Zhang Y. H.,Song X. F.,Wu Y. Q.. Use of oxygen-18 isotope to quantify flows in the upriver and middle reaches of the Heihe River, northwestern china. 2009. |
入库方式： OAI收割
来源：地理科学与资源研究所
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