Runoff sensitivity increases with land use/cover change contributing to runoff decline across the middle reaches of the Yellow River basin
文献类型：期刊论文
| 作者 | Wang, Yaping; Wang, Shuai; Wang, Cong ; Zhao, Wenwu
|
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2021-09 |
| 卷号 | 600页码:- |
| ISSN号 | 0022-1694 |
| 关键词 | Budyko Elasticity Attribution analysis Loess Plateau |
| 英文摘要 | With great changes, such as climate and land use/cover, occurring in hydrological processes over the last decades, runoff sensitivity, here defined as proportional changes in runoff caused by a given proportional change in its driving factors (including precipitation, P, potential evapotranspiration, PET, and parameter m), has also been changing over time. However, few studies have focused on this sensitivity change, and runoff sensitivity is always considered to be constant in runoff attribution analysis with an elasticity-based method. In this study, we attempt to examine the temporal variation of runoff sensitivity in the middle reaches of the Yellow River basin, China, and quantify its effects on the changes in runoff so that the existing attribution method can be improved. We found that runoff sensitivity showed statistically significant trend, and runoff became more sensitive to changes in long-term average P, PET, and m. Parameter m, largely affected by land use/cover change resulting from large scale ecological projects, was the major contributor to change in runoff sensitivity, followed by P, and lastly PET. Runoff sensitivity variation contributed approximately 20% to the proportional runoff change, and by allowing runoff sensitivity to change over time, relative contributions of P, PET, and m to runoff would range from -5.05% to 9.94%. Our study supplements research focusing on hydrological changes and interactions, and we suggest that temporal variation in runoff sensitivity should be considered when quantifying the impacts of driving factors on changes in hydrological processes. |
| WOS研究方向 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45558]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 3.Beijing Normal Univ, Fac Geog Sci, Inst Land Surface Syst & Sustainabil, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yaping,Wang, Shuai,Wang, Cong,et al. Runoff sensitivity increases with land use/cover change contributing to runoff decline across the middle reaches of the Yellow River basin[J]. JOURNAL OF HYDROLOGY,2021,600:-. |
| APA | Wang, Yaping,Wang, Shuai,Wang, Cong,&Zhao, Wenwu.(2021).Runoff sensitivity increases with land use/cover change contributing to runoff decline across the middle reaches of the Yellow River basin.JOURNAL OF HYDROLOGY,600,-. |
| MLA | Wang, Yaping,et al."Runoff sensitivity increases with land use/cover change contributing to runoff decline across the middle reaches of the Yellow River basin".JOURNAL OF HYDROLOGY 600(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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