How old is the water in the Yellow River Source Area? A multiscale analysis using transit time distributions
文献类型：期刊论文
| 作者 | Fang, Jinzhu1; Stockinger, Michael2; Yang, Yibo1; Yi, Peng1; Stumpp, Christine2; Shen, Jijie3; Xiong, Ling1; Shi, Jiayong1 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 663页码:134265 |
| 关键词 | Stable isotope Transit time distribution Permafrost Nested basins Yellow River Source Area (SAYR) |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2025.134265 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Estimating water yield is a crucial aspect of evaluating conservation strategies and ensuring sustainable development of watershed water resources. The determination of the transit time distribution (TTD) using stable water isotopes has become essential for characterizing the storage and release processes of water in watersheds. In this study, we estimated TTD using the convolution integral method during the thawing period of five permafrostinfluenced, nested basins (20000 similar to 120000 km(2)) in the Yellow River Source Area (SAYR). To account for the effect of the thawing permafrost layer, an additional source contributing to runoff was added to the convolution integral approach. We derived the mean transit time (MTT) and the fraction of water younger than threshold age (hereafter abbreviated as T.A, (F(t < T.A)) from the TTD. The result of Bayesian optimization showed that F (t < T.A) ranged from 0.12 to 0.64, and MTT ranged from 40 to 368 days. The F(t < T.A) and the MTT of the watersheds were mainly influenced by river channel topography and the water retention capacity of the watersheds which depended on the topographical and morphological characteristics. They were to a lesser degree affected by land use type, soil type, and the thermal stability of the frozen soil. The results in this study show that estimating watershed transit times could be improved by incorporating a convolution integral model with permafrost meltwater contribution during melting time. |
| URL标识 | 查看原文 |
| WOS关键词 | STABLE-ISOTOPES ; RESIDENCE TIMES ; HYDROLOGICAL CONNECTIVITY ; ENVIRONMENTAL SYSTEMS ; RUNOFF PROCESSES ; UNGAUGED BASINS ; FLOW PATHS ; CATCHMENT ; DYNAMICS ; STORAGE |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001580715400002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217456]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yi, Peng |
| 作者单位 | 1.Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China; 2.BOKU Univ, Inst Soil Phys & Rural Water Management SoPhy, Dept Landscape Water & Infrastruct, Muthgasse 18, A-1190 Vienna, Austria; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Jinzhu,Stockinger, Michael,Yang, Yibo,et al. How old is the water in the Yellow River Source Area? A multiscale analysis using transit time distributions[J]. JOURNAL OF HYDROLOGY,2025,663:134265. |
| APA | Fang, Jinzhu.,Stockinger, Michael.,Yang, Yibo.,Yi, Peng.,Stumpp, Christine.,...&Shi, Jiayong.(2025).How old is the water in the Yellow River Source Area? A multiscale analysis using transit time distributions.JOURNAL OF HYDROLOGY,663,134265. |
| MLA | Fang, Jinzhu,et al."How old is the water in the Yellow River Source Area? A multiscale analysis using transit time distributions".JOURNAL OF HYDROLOGY 663(2025):134265. |
入库方式： OAI收割
来源：地理科学与资源研究所
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