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
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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 |
DOI | 10.1016/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. |
URL标识 | 查看原文 |
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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