Direct and indirect impact assessments of climate changes and human activities on runoff changes in 31 source catchments of Yellow River Basin, China
文献类型：期刊论文
| 作者 | Cao, Can3,4; Zhang, Yongyong4; Peng, Kun2; Tang, Qiuhong4; Zhang, Yongqiang4; Wang, Guoqing1 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 669页码:134974 |
| 关键词 | Runoff attribution analysis Budyko framework Elasticity coefficient Climate change Human activities Yellow River Basin |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2026.134974 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Most existing attribution assessments of runoff changes mainly focused on direct effects of climate change and human activities on runoff changes, and their indirect effect assessments were not widely reported, i.e., impacts on underlying surface conditions and their consequences to runoff changes. In this study, we adopted an improved Budyko framework, employing the elasticity coefficient method and principal component regression, to comprehensively assess both the direct and indirect impacts of climate changes and human activities on runoff changes. Thirty-one source catchments were selected in the upper and middle reaches of the Yellow River Basin, comprising the Yellow River Source Region (YRSB), Wei River Basin (WRB) and Yiluo River Basin (YRB). Results showed that during 1995-2022, the mean annual runoff changes in the post-change period ranged from -24.0 to 129.9 mm in 31 source catchments compared to the pre-change period. The underlying surface parameter n in the Budyko model ranged from 0.4 to 3.8, with lower values mainly in the YRSB. Sensitivity analysis revealed that parameter n was most sensitive to potential evapotranspiration, particularly in the YRB, and runoff changes exhibited the greatest sensitivity to precipitation, with the highest sensitivity observed in the WRB. Changes in parameter n were primarily attributed to human activities (77.4%) rather than climatic factors (22.6%), with irrigation water (22.6%) and temperature (8.4%) exhibiting the largest impacts, respectively. Contributions to runoff changes were 54.7% from the direct impact of climate change, highest in the YRSB at 59.8%, while 12.2% from its indirect impact, and 33.1% from human activities, with the greatest influence both in the YRB at 16.2% and 42.4%, respectively. |
| URL标识 | 查看原文 |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001685633300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221075]  |
| 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, Yongyong |
| 作者单位 | 1.Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul Eng, Nanjing 210029, Peoples R China 2.Xinjiang & Raohe Hydrol & Water Resources Monitori, Shangrao 334000, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Cao, Can,Zhang, Yongyong,Peng, Kun,et al. Direct and indirect impact assessments of climate changes and human activities on runoff changes in 31 source catchments of Yellow River Basin, China[J]. JOURNAL OF HYDROLOGY,2026,669:134974. |
| APA | Cao, Can,Zhang, Yongyong,Peng, Kun,Tang, Qiuhong,Zhang, Yongqiang,&Wang, Guoqing.(2026).Direct and indirect impact assessments of climate changes and human activities on runoff changes in 31 source catchments of Yellow River Basin, China.JOURNAL OF HYDROLOGY,669,134974. |
| MLA | Cao, Can,et al."Direct and indirect impact assessments of climate changes and human activities on runoff changes in 31 source catchments of Yellow River Basin, China".JOURNAL OF HYDROLOGY 669(2026):134974. |
入库方式： OAI收割
来源：地理科学与资源研究所
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