中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Slope effects on soil moisture migration and evolution in shallow layers of loess high-fill slopes in the Gully Land Consolidation

文献类型:期刊论文

作者Bao, Han1,5; Ji, Chenlin1; Lan, Hengxing2; Zheng, Han3,5; Yan, Changgen1; Peng, Jianbing4,5; Li, Langping2; Wang, Juntian1; Guo, Guanmiao1
刊名CATENA
出版日期2025-10-01
卷号258页码:109206
关键词Slope effects High-fill slope Moisture migration Rainfall response Loess Gully land consolidation
ISSN号0341-8162
DOI10.1016/j.catena.2025.109206
产权排序2
文献子类Article
英文摘要Many loess high-fill slopes have been constructed in the Loess Plateau of China, which are susceptible to shallow diseases and disasters owing to water migration and evolution. The existence of a slope surface profoundly affects soil moisture dynamics, thus potentially altering the slope instability. According to long-term, multi-point, and multi-depth on-site monitoring, shallow soil moisture's migration and evolution characteristics under slope effects were investigated. The influence of the microtopography on the slope effects is also clarified. The results showed that the characteristics under sloped conditions significantly differed from those under flat terrain conditions. During water infiltration and redistribution, the sloping topography shifts the depth of influence of rainfall infiltration downward; the lateral flow duration and the peak of the change rate of moisture content (CRMC) at the slope step were significantly smaller than those at the slope face. During the drainage stage, the slope effect enhances the draining capacity and range of soil layers, with the slope step exhibiting greater draining efficiency. Besides, the slope effect reduces the magnitude and amplitude of soil water potential gradients (SWPG), thereby weakening the intensity of driving force evolution. Among the factors influencing the slope effect, large rainfall events and root plant development promote the slope effects, whereas high initial water content and shallow groundwater tend to suppress it. These findings are of great significance for advancing the understanding of slope soil moisture migration patterns and ensuring the stability of shallow slope layers.
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WOS关键词RAINFALL INTENSITY ; WATER STORAGE ; INFILTRATION ; VARIABILITY ; PLATEAU ; SURFACE ; FLOW ; CONDUCTIVITY ; MECHANISMS ; CATCHMENT
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:001511065900002
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/214506]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Bao, Han
作者单位1.Changan Univ, Sch Highway, Middle Sect South Erhuan Rd, Xian 710064, Shaanxi, Peoples R China;
2.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
3.Changan Univ, Sch Environm Sci & Engn, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Minist Educ, Xian 710054, Peoples R China;
4.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Shaanxi, Peoples R China;
5.State Key Lab Loess Sci, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714
Bao, Han,Ji, Chenlin,Lan, Hengxing,et al. Slope effects on soil moisture migration and evolution in shallow layers of loess high-fill slopes in the Gully Land Consolidation[J]. CATENA,2025,258:109206.
APA Bao, Han.,Ji, Chenlin.,Lan, Hengxing.,Zheng, Han.,Yan, Changgen.,...&Guo, Guanmiao.(2025).Slope effects on soil moisture migration and evolution in shallow layers of loess high-fill slopes in the Gully Land Consolidation.CATENA,258,109206.
MLA Bao, Han,et al."Slope effects on soil moisture migration and evolution in shallow layers of loess high-fill slopes in the Gully Land Consolidation".CATENA 258(2025):109206.

入库方式: OAI收割

来源:地理科学与资源研究所

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