Integrated isotopic-hydrological method reveals karst plateau reservoir leakage dynamics in urban water systems
文献类型：期刊论文
| 作者 | Han, Qiaohua5; Yin, Jiqing4,5; Li, Taohui1,3; Chen, Junmei2; Shi, Zhengtao5; Zhang, Wenxiang5 |
| 刊名 | JOURNAL OF HYDROLOGY-REGIONAL STUDIES
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 62页码:102901 |
| 关键词 | Isotopic-hydrological method PLS-SEM Reservoir leakage Plateau City Karst areas |
| DOI | 10.1016/j.ejrh.2025.102901 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Study region: The karst plateau drinking water source is situated in southwestern China. Study focus: The complex karst hydrogeology of the study area, characterized by heterogeneous fracturing, presents significant challenges for accurately quantifying lake and reservoir leakage. To address these challenges, we developed an integrated framework combining stable isotope (SD and S18O), the water balance equation, and partial least squares-structural equation modeling (PLS-SEM) to account for evaporation effects, estimate karst reservoir leakage, and identify its driving mechanisms. New hydrological insights for the region: Seasonal isotopic variations exhibit distinct patterns, with enriched SD and S1 8O values during the rainy seasons and depleted values in the dry seasons, along with transitional mixtures during seasonal shifts. The evaporation line equation confirms strong evaporative fractionation effects. The integrated isotopic-hydrological method provides precise leakage quantification, estimating annual leakage at 10.4 x 106 m3 , with 1.1 % of total reservoir capacity, which closely aligns with the reservoir's engineering design specifications, showing only a 0.1 % deviation. PLS-SEM identifies reservoir capacity as the primary control on leakage ((3 = 0.772), while humidity and precipitation exert secondary influences, highlighting the role of atmospheric interactions. These findings offer a transferable methodology for karst water management, providing quantitative benchmarks to address climate-induced hydrological stresses globally. |
| URL标识 | 查看原文 |
| WOS关键词 | PRECIPITATION ; EVAPORATION ; BALANCE ; BASIN |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001609555700002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217679]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Zhang, Wenxiang |
| 作者单位 | 1.Yunnan Univ, Yunnan Key Lab Meteorol Disasters & Climate Resour, Kunming 650504, Peoples R China; 2.Dechang Cty Meteorol Bur, Dechang 615500, Sichuan, Peoples R China 3.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 4.Yunnan Minzu Univ, Kunming 650504, Peoples R China; 5.Yunnan Normal Univ, Fac Geog, Yunnan Key Lab Plateau Geog Proc & Environm Change, Kunming 650500, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Han, Qiaohua,Yin, Jiqing,Li, Taohui,et al. Integrated isotopic-hydrological method reveals karst plateau reservoir leakage dynamics in urban water systems[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2025,62:102901. |
| APA | Han, Qiaohua,Yin, Jiqing,Li, Taohui,Chen, Junmei,Shi, Zhengtao,&Zhang, Wenxiang.(2025).Integrated isotopic-hydrological method reveals karst plateau reservoir leakage dynamics in urban water systems.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,62,102901. |
| MLA | Han, Qiaohua,et al."Integrated isotopic-hydrological method reveals karst plateau reservoir leakage dynamics in urban water systems".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 62(2025):102901. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。