Quantitative assessment of the impacts of climate and human activities on streamflow of the Lancang-Mekong river over the recent decades
文献类型：期刊论文
| 作者 | Li, Renzhi3,4; Huang, He Qing1,2; Wang, Zhonggen3,4; Zhao, Ruxin4 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2023-01-04 |
| 卷号 | 10页码:15 |
| 关键词 | Lancang-Mekong river basin climate change human activities streamflow SWAT model |
| DOI | 10.3389/feart.2022.1024037 |
| 通讯作者 | Wang, Zhonggen(wangzg@igsnrr.ac.cn) |
| 英文摘要 | The impacts of climate and human activities exerted on streamflow over the recent decades in the Lancang-Mekong River Basin (LMRB) have been examined in separate forms and this study performed an integrated quantitative evaluation. Using the meteorological and hydrological data measured in LMRB during 1961-2015, we analyzed the varying trend and abrupt change characteristics of streamflow along the river course, and constructed a SWAT hydrological model to quantitatively evaluate the contributions of climate and human activities by taking into account their spatial heterogeneity. At the yearly timescale, the results show that for significant complex changes in streamflow along the Lancang-Mekong River, the ratios of the contributions of the impacts of human activity (eta(h)) before 2000 to those after 2000 are under 15.2%, 17.5% and 32.4% respectively in the source area above Jiuzou (China), the upper area between Jiuzhou and Yunjinghong (China), and the middle area between Jiuzhou and Vientiane (Laos). In the lower area between Vientiane and Stung Treng (Cambodia), eta(h) was only 22.6% before 2000 and yet dramatically increased to 59.1% after 2000. While the same situation happened at the seasonal time scale, eta(h) has relatively larger values during dry seasons than in wet seasons. In contrast to the gradually increased impacts of human activities, the impacts of climate on streamflow gradually decreased from the upper to the lower areas. Furthermore, the impacts of the changes in land use types account for about 1/3 in the Lancang River Basin and yet reaches more than 1/2 in the Mekong River Basin. |
| WOS关键词 | WATER ; BASIN ; CALIBRATION ; RUNOFF ; MODEL |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19030204] ; National Natural Science Foundation of China[41,561,144,012] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000919228700001 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/189400]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Zhonggen |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Minist Emergency Management China, Key Lab Cpd & Chained Nat Hazards Dynam, Beijing, Peoples R China 4.Minist Emergency Management Peoples Republ China, Natl Inst Nat Hazards, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Renzhi,Huang, He Qing,Wang, Zhonggen,et al. Quantitative assessment of the impacts of climate and human activities on streamflow of the Lancang-Mekong river over the recent decades[J]. FRONTIERS IN EARTH SCIENCE,2023,10:15. |
| APA | Li, Renzhi,Huang, He Qing,Wang, Zhonggen,&Zhao, Ruxin.(2023).Quantitative assessment of the impacts of climate and human activities on streamflow of the Lancang-Mekong river over the recent decades.FRONTIERS IN EARTH SCIENCE,10,15. |
| MLA | Li, Renzhi,et al."Quantitative assessment of the impacts of climate and human activities on streamflow of the Lancang-Mekong river over the recent decades".FRONTIERS IN EARTH SCIENCE 10(2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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