Quantifying the importance of different erosion processes and soil and water conservation measure collapses following an extreme rainstorm in the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Chen, Yixian4,5,6,7; Vanmaercke, Matthias1,4; Jiao, Juying3,7; Bai, Leichao2,3; Tang, Bingzhe3,6; Wang, Nan5,7; Zhang, Yifeng3; Wang, Haolin3 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
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| 出版日期 | 2022-10-09 |
| 页码 | 20 |
| ISSN号 | 1085-3278 |
| 关键词 | catchment check-dam field survey Google Earth gully landslide rill soil and water conservation measure collapse terrace |
| DOI | 10.1002/ldr.4468 |
| 通讯作者 | Jiao, Juying(jyjiao@ms.iswc.ac.cn) |
| 英文摘要 | Extreme rainfall events can make disproportionally larger contributions than common rainfalls to soil erosion rates. Yet assessing the importance of different soil erosion processes during such events remains a critical challenge, especially due to a lack of field observations. Based on detailed field surveys and remote-sensing analyses, we therefore provide erosion budgets for three representative catchments in the Chinese Loess Plateau, following an exceptional rainstorm event (July 26, 2017; estimated return period: 200 years). Our results show that the associated catchment-scale erosion intensities were 2815 +/- 529 t km(-)(2) for rill erosion, 787 +/- 486 t km(-)(2) for gully erosion, 4433 +/- 657 t km(-)(2) for landsliding and 3927 +/- 1009 t km(-)(2) for the collapse of implemented soil and water conservation measures (SWCMs, specifically terraces and check-dams). Hence, landslides (37 +/- 4%) and SWCMs collapses (33 +/- 4%) were the most important sediment sources, followed by rill (24 +/- 3%) and gully erosion (7 +/- 4%). The lower contribution of gully erosion likely results from earlier vegetation restoration efforts. Overall, our results indicate that successful erosion control during extreme events strongly depends on integrative and robust catchment management strategies. Specifically, the spatial intersecting of forestland and grassland can play a large role, with reforestation on problematic slopes being an important strategy limiting rill and gully erosion. Sufficient consideration should be given to the planning and maintenance of terraces and check-dams. The latter should be constructed with good flood-release facilities, meanwhile many small-scale dams likely work better than a few large ones. Likewise, (unpaved) roads should receive attention as they can also be a significant runoff and sediment source. |
| WOS关键词 | GULLY EROSION ; LAND-USE ; SHALLOW LANDSLIDES ; VEGETATION COVER ; SEDIMENT YIELD ; RILL EROSION ; CHECK DAMS ; RAINFALL INTENSITY ; HILLSLOPE EROSION ; TERRACE FAILURE |
| 资助项目 | National Natural Science Foundation of China[U2243213] ; National Natural Science Foundation of China[42077078] ; National Natural Science Foundation of China[41907044] ; National Natural Science Foundation of China[41771319] ; China Postdoctoral Science Foundation[2021MD703884] ; China Scholarship Council[201904910384] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000865292000001 |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Scholarship Council |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185671]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Jiao, Juying |
| 作者单位 | 1.Katholieke Univ Leuven, Dept Earth & Environm Sci, Div Geog & Tourism, Heverlee, Belgium 2.China West Normal Univ, Sch Geog Sci, Nanchong, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China 4.Univ Liege, Dept Geog, Liege, Belgium 5.Univ Chinese Acad Sci, Inst Soil & Water Conservat, Beijing, Peoples R China 6.Northwest Univ, Coll Urban & Environm Sci, Xian, Peoples R China 7.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yixian,Vanmaercke, Matthias,Jiao, Juying,et al. Quantifying the importance of different erosion processes and soil and water conservation measure collapses following an extreme rainstorm in the Chinese Loess Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2022:20. |
| APA | Chen, Yixian.,Vanmaercke, Matthias.,Jiao, Juying.,Bai, Leichao.,Tang, Bingzhe.,...&Wang, Haolin.(2022).Quantifying the importance of different erosion processes and soil and water conservation measure collapses following an extreme rainstorm in the Chinese Loess Plateau.LAND DEGRADATION & DEVELOPMENT,20. |
| MLA | Chen, Yixian,et al."Quantifying the importance of different erosion processes and soil and water conservation measure collapses following an extreme rainstorm in the Chinese Loess Plateau".LAND DEGRADATION & DEVELOPMENT (2022):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
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