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Telling a different story: The promote role of vegetation in the initiation of shallow landslides during rainfall on the Chinese Loess Plateau

文献类型：期刊论文

作者Guo, Wen-Zhao2,3; Chen, Zhuo-Xin2; Wang, Wen-Long2,3; Gao, Wen-Wang4; Guo, Ming-Ming2; Kang, Hong-Liang2; Li, Peng-Fei1; Wang, Wen-Xin2; Zhao, Man2
刊名GEOMORPHOLOGY
出版日期2020-02-01
卷号350页码:13
关键词Landslide Soil erosion Rainfall Vegetation Soil properties Loess Plateau
ISSN号0169-555X
DOI10.1016/j.geomorph.2019.106879
通讯作者Guo, Wen-Zhao(wenzhaoguo@nwafu.edu.cn)
英文摘要Vegetation is widely used for controlling landslides around the world; however, rainfall-induced shallow landslides occur frequently on vegetation-covered slopes on the Chinese Loess Plateau during the rainy season. To probe this phenomenon, we conducted on-site investigations and measurements in the Nanxiaohegou catchment on the Loess Plateau to explore the effects of soil properties and vegetation on shallow loess landslides. Most of the loess landslides on vegetation-covered slopes were small scale with depths ranging from 0.3 m to 1.0 m, corresponding to the topsoil being saturated due to rainfall. Majority of shallow landslides occurred on herbage-covered area, which made up 69% of total landslides. There are significant differences in soil properties between the upper layer (root-soil composite) and the lower layer (loess) of the sliding surface. Our study demonstrated that root plays a leading role in landslide erosion and that the most adverse effect of vegetation on landslides is mainly the increase in soil moisture content in the shallow soil through the root zone creating preferential infiltration flow paths. There are remarkable differences in landslide erosion depths and landslide erosion intensities among different vegetation types. The landslide erosion depth and landslide erosion intensity increased linearly with increasing main root depth, indicating that the vegetation root depth determines the landslide erosion intensity during rainfall. Therefore, the potential implications of vegetation especially the herbage to promote landslide occurrences during rainfall should be given more attention in the future. (C) 2019 Elsevier B.V. All rights reserved.
WOS关键词SPATIAL VARIABILITY ; ROOT REINFORCEMENT ; STABILITY MODEL ; MASS MOVEMENTS ; NEW-ZEALAND ; LAND-USE ; SOIL ; EROSION ; SLOPES ; STEEP
资助项目National Natural Science Foundation of China[41907057] ; CRSRI Open Research Program[CKWV2019762/KY] ; Fundamental Research Funds for the Central Universities[2452018046] ; Western light Foundation of the Chinese Academy of Sciences[XAB2018B07]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000532088300008
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; CRSRI Open Research Program ; Fundamental Research Funds for the Central Universities ; Western light Foundation of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/159666]  
专题中国科学院地理科学与资源研究所
通讯作者Guo, Wen-Zhao
作者单位1.Xian Univ Sci & Technol, Coll Geomat, Xian 710054, Shaanxi, 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.Xifeng Soil & Water Conservat Expt Stn Yellow Riv, Qingyang 745000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Wen-Zhao,Chen, Zhuo-Xin,Wang, Wen-Long,et al. Telling a different story: The promote role of vegetation in the initiation of shallow landslides during rainfall on the Chinese Loess Plateau[J]. GEOMORPHOLOGY,2020,350:13.
APA Guo, Wen-Zhao.,Chen, Zhuo-Xin.,Wang, Wen-Long.,Gao, Wen-Wang.,Guo, Ming-Ming.,...&Zhao, Man.(2020).Telling a different story: The promote role of vegetation in the initiation of shallow landslides during rainfall on the Chinese Loess Plateau.GEOMORPHOLOGY,350,13.
MLA Guo, Wen-Zhao,et al."Telling a different story: The promote role of vegetation in the initiation of shallow landslides during rainfall on the Chinese Loess Plateau".GEOMORPHOLOGY 350(2020):13.

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来源：地理科学与资源研究所

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