Loess erosion patterns on a cut-slope revealed by LiDAR scanning
文献类型：期刊论文
| 作者 | Li, Langping1; Lan, Hengxing1,2 ; Peng, Jianbing2
|
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 268页码:13 |
| 关键词 | Erosion Chinese Loess Plateau Cut-slope LiDAR |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2020.105516 |
| 通讯作者 | Lan, Hengxing(lanhx@lreis.ac.cn) |
| 英文摘要 | Erosion is a major environmental issue on the Chinese Loess Plateau. Although the erosion intensity on the plateau has generally decreased in recent years, ongoing mega-engineering projects continuously produce large, bare, and steep loess cut-slopes that are prone to erosion. Therefore, investigating loess erosion on cut-slopes in this region has practical importance. Multi-temporal high-resolution digital elevation model (DEM) analysis has been widely used to quantify surface erosion, but has not yet been applied to loess cut-slopes. This study aims to reveal the spatial and temporal patterns of loess erosion on an artificial cut-slope through the analysis of a time series of LiDAR scans. The results showed that the spatial distribution of loess erosion on the study cut-slope was constrained by three slope characteristics: slope material, slope structure, and slope hydrology. The highest erosion rates were observed in areas with paleosols, discontinuities, and water accumulation. In the temporal domain, the variation of the loess erosion rate with rainfall intensity could be described using a power function. Although this research only focused on one slope, findings suggest that it is possible to investigate the complex loess erosion on cut-slopes using state-of-the-art high-resolution remote sensing techniques such as LiDAR scanning. Our results provide useful information for soil conservation on similar engineering loess cut-slopes in the Loess Plateau. |
| WOS关键词 | FROM-MOTION PHOTOGRAMMETRY ; SOIL-EROSION ; VEGETATION COVERAGE ; PLATEAU ; RAINFALL ; CHINA ; AREA ; TOPOGRAPHY ; DEPOSITION ; CATCHMENT |
| 资助项目 | National Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41807291] ; National Natural Science Foundation of China[41525010] ; National Natural Science Foundation of China[41927806] ; National Natural Science Foundation of China[41421001] ; National Key R&D Program of China[SQ2019YFC150126] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA23090301] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19040304] ; Innovation Project of LREIS, CAS[O88RAA02YA] ; Youth Science Funds of LREIS, CAS |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000525398800011 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Innovation Project of LREIS, CAS ; Youth Science Funds of LREIS, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/133982]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lan, Hengxing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, 11A Datun Rd, Beijing 100101, Peoples R China 2.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Langping,Lan, Hengxing,Peng, Jianbing. Loess erosion patterns on a cut-slope revealed by LiDAR scanning[J]. ENGINEERING GEOLOGY,2020,268:13. |
| APA | Li, Langping,Lan, Hengxing,&Peng, Jianbing.(2020).Loess erosion patterns on a cut-slope revealed by LiDAR scanning.ENGINEERING GEOLOGY,268,13. |
| MLA | Li, Langping,et al."Loess erosion patterns on a cut-slope revealed by LiDAR scanning".ENGINEERING GEOLOGY 268(2020):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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