Effects of climate variability and anthropogenic factors on sediment load reduction in the Weihe River basin, China
文献类型：期刊论文
| 作者 | Hu, Jinfei1,2; Li, Pengfei1; Zhao, Guangju2,3; Mu, Xingmin2,3; Hoermann, Georg4; Gao, Peng2,3; Sun, Wenyi2,3; Zhang, Limei2 |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 36期号:4页码:17 |
| ISSN号 | 0885-6087 |
| 关键词 | human activities Loess Plateau rainfall erosivity sediment load spatiotemporal changes |
| DOI | 10.1002/hyp.14562 |
| 通讯作者 | Zhao, Guangju(gjzhao@ms.iswc.ac.cn) ; Mu, Xingmin(xmmu@ms.iswc.ac.cn) |
| 英文摘要 | Sediment load of China's Yellow River has dramatically decreased due to the interplay of climate variability and human activities in the past decades. However, the contribution of individual driving factors and the detailed spatial distribution of sediment load at a catchment scale were not well understood. In the study, we quantitatively assessed the relative contributions of individual climatic (i.e. precipitation) and anthropogenic (i.e. vegetation restoration, terrace construction) driving factors to sediment load variations in the largest tributary of the Yellow River, Weihe River. The employed annual sediment load measurements and rainfall data for 1961-2015 were collected at 15 hydrological and 60 meteorological stations that were widely distributed in the basin. Changing trends, periodicity, and abrupt changes of hydro-climatic variables were detected using the non-parametric Mann-Kendall test, the empirical mode decomposition method, and Pettitt's test. Results showed that annual sediment load presented significantly decreasing trends at 12 hydrological stations. Annual rainfall erosivity showed a mixed tendency, with the changing trends varying among different regions. A 3-year periodicity was identified in the annual sediment load at three main stream gauging stations. Abrupt changing points in sediment load primarily occurred in the 1990s and early 2000s at all of the 15 hydrological stations, which were largely attributed to human activities. The increase in vegetation cover was responsible for approximately 40.6%, 37.4%, and 54.7% of the sediment load reduction in the main stream of the Weihe River, the Jinghe River, and the Beiluohe River, respectively. Meanwhile, terrace construction accounted for 19.7%, 43.8%, and 9.9% of the sediment variation, respectively. Conversely, precipitation change accounted for 5.7%, 12.4%, and 8.3% of sediment load reduction, respectively. Overall, vegetation restoration and terrace construction were found to be the two dominating factors for sediment load reduction in the study area. |
| WOS关键词 | LAND-USE CHANGE ; EMPIRICAL MODE DECOMPOSITION ; LONG-TERM CHANGES ; LOESS PLATEAU ; YELLOW-RIVER ; SOIL-EROSION ; VEGETATION COVER ; WATER DISCHARGE ; MIDDLE REACHES ; HILLY AREAS |
| 资助项目 | Education Department of Shaanxi Province[19JK0522] ; National Natural Science Foundation of China[U2243211] ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021403-Q2] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000781017200001 |
| 资助机构 | Education Department of Shaanxi Province ; National Natural Science Foundation of China ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174047]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Guangju; Mu, Xingmin |
| 作者单位 | 1.Xian Univ Sci & Technol, Coll Geomat, Xian, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 4.Christian Albrechts Unv Kiel, Ecol Ctr, Dept Hydrol & Water Resources Management, Kiel, Germany |
| 推荐引用方式 GB/T 7714 | Hu, Jinfei,Li, Pengfei,Zhao, Guangju,et al. Effects of climate variability and anthropogenic factors on sediment load reduction in the Weihe River basin, China[J]. HYDROLOGICAL PROCESSES,2022,36(4):17. |
| APA | Hu, Jinfei.,Li, Pengfei.,Zhao, Guangju.,Mu, Xingmin.,Hoermann, Georg.,...&Zhang, Limei.(2022).Effects of climate variability and anthropogenic factors on sediment load reduction in the Weihe River basin, China.HYDROLOGICAL PROCESSES,36(4),17. |
| MLA | Hu, Jinfei,et al."Effects of climate variability and anthropogenic factors on sediment load reduction in the Weihe River basin, China".HYDROLOGICAL PROCESSES 36.4(2022):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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