Spatiotemporal Patterns of Hillslope Erosion Investigated Based on Field Scouring Experiments and Terrestrial Laser Scanning
文献类型：期刊论文
| 作者 | Li, Pengfei1; Hao, Mingkui1; Hu, Jinfei1; Gao, Chendi1; Zhao, Guangju2,3; Chan, Faith Ka Shun4; Gao, Jianjian5; Dang, Tianmin6; Mu, Xingmin2,3 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 13期号:9页码:21 |
| 关键词 | remote sensing field hillslope erosion monitoring accuracy dynamic changes Loess Plateau |
| DOI | 10.3390/rs13091674 |
| 通讯作者 | Mu, Xingmin(xmmu@ms.iswc.ac.cn) |
| 英文摘要 | Hillslope erosion is an essential source of catchment sediment yield. However, the current understanding of the spatiotemporal patterns of field hillslope erosion processes is limited. In this study, fourteen runoff scouring experiments were undertaken on two plots (A and B) established on one field slope of the hilly and gully loess plateau in China. Terrestrial laser scanning (TLS) was employed to investigate soil erosion processes across the hillslopes of the plots. The results demonstrated that the TLS-derived cumulative sediment yields of the hillslopes were more accurate than the TLS-derived consecutive sediment yields (i.e., the sediment yields for individual experiments). The magnitudes of the mean absolute/relative errors for the TLS-derived cumulative sediment yield for slopes A and B were 0.87 kg/25.02% and 1.26 kg/56.82%, respectively, with the linear relation R-2 between the calculated and measured values over 0.60 (p < 0.001). The sediment yields from the hillslopes fluctuated considerably even when the runoff production became stable, leading to a weak relationship between the sediment yield and runoff discharge (the R-2 values for slopes A and B were 0.57 (p = 0.002) and 0.08 (p = 0.321) for inter-experiments, and 0.37 (p < 0.001) and 0.06 (p = 0.035) for intra-experiments, respectively). The development of hillslope erosion was found to experience three major stages, which included a rapid increase and widespread distribution, a sharp decrease, and a stable distribution of the area with erosion/deposition. The rill development impacted the cumulative erosion and sediment yield rather than the cumulative deposition, with the impacts of rill depth and rill width development being stronger than those of rill length. The peak sediment yield corresponded well with the evolution of rills, partly accounting for the weak relationship between runoff and sediment yield. Our results provide a useful reference for the development of process-based soil erosion models and the establishment of spatially targeted control of soil erosion. |
| WOS关键词 | SOIL-EROSION ; LOESS PLATEAU ; LAND-USE ; HYPERCONCENTRATED FLOW ; WATER EROSION ; GULLY EROSION ; BLACK SOIL ; TOPOGRAPHY ; DEPOSITION ; LIDAR |
| 资助项目 | National Natural Science Foundation of China[41807063] ; National Natural Science Foundation of China[41977059] ; National Natural Science Foundation of China[41701442] ; National Natural Science Foundation of China[41850410497] ; Shaanxi Provincial Department of Education[19JK0522] ; National Key R&D Program of China[2019YFC1510400] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000650741700001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Shaanxi Provincial Department of Education ; National Key R&D Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162623]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Mu, Xingmin |
| 作者单位 | 1.Xian Univ Sci & Technol, Coll Geomat, Xian 710054, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Univ Nottingham Ningbo China, Fac Sci & Engn, Sch Geog Sci, Ningbo 315100, Peoples R China 5.Yellow River Conservancy Commiss, Suide Expt Stn Soil & Water Conservat, Yulin 719000, Peoples R China 6.Upper & Middle Yellow River Bur, Xian 710021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Pengfei,Hao, Mingkui,Hu, Jinfei,et al. Spatiotemporal Patterns of Hillslope Erosion Investigated Based on Field Scouring Experiments and Terrestrial Laser Scanning[J]. REMOTE SENSING,2021,13(9):21. |
| APA | Li, Pengfei.,Hao, Mingkui.,Hu, Jinfei.,Gao, Chendi.,Zhao, Guangju.,...&Mu, Xingmin.(2021).Spatiotemporal Patterns of Hillslope Erosion Investigated Based on Field Scouring Experiments and Terrestrial Laser Scanning.REMOTE SENSING,13(9),21. |
| MLA | Li, Pengfei,et al."Spatiotemporal Patterns of Hillslope Erosion Investigated Based on Field Scouring Experiments and Terrestrial Laser Scanning".REMOTE SENSING 13.9(2021):21. |
入库方式： OAI收割
来源：地理科学与资源研究所
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