DOI: 10.5194/hess-19-1849-2015
Scopus记录号: 2-s2.0-84928474087
论文题名: Erosion processes in black marl soils at the millimetre scale: Preliminary insights from an analogous model
作者: Bechet J ; , Duc J ; , Jaboyedoff M ; , Loye A ; , Mathys N
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 4 起始页码: 1849
结束页码: 1855
语种: 英语
Scopus关键词: Erosion
; Fertilizers
; Infiltration
; Soils
; Surface topography
; Surveying instruments
; Swelling
; Desiccation cracks
; Erosion process
; Infiltration rate
; Lateral expansion
; Micro topography
; Natural rainfalls
; Terrestrial laser scanners
; Undisturbed sample
; Extraction
; accuracy assessment
; badlands
; crack
; erosion control
; extraction method
; infiltration
; landslide
; laser method
; marl
; observatory
; slope angle
; soil erosion
; soil type
; swelling
; France
英文摘要: To investigate the millimetre-scale surface processes caused by natural rainfall, an undisturbed sample of badlands soil (1 m long, 0.5 m wide and 0.15 m thick) was carefully extracted. The sample is composed of black marl soil from a badlands area of the Draix Observatory (SE France). After extraction, the undisturbed sample was placed at the same slope angle (45°) as its original orientation and was then monitored for several processes via a terrestrial laser scanner (TLS) with millimetre-scale accuracy and resolution. This experiment identified several surface processes interpreted as micro-landslides, swelling of the black marl material and lateral expansion that closed desiccation cracks. These micro-processes illustrate the complexity of the surface micro-topography changes that control erosion and infiltration rates over time. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78548
Appears in Collections: 气候变化事实与影响
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作者单位: University of Lausanne, Risk-group, ISTE-Institute of Earth Sciences, Lausanne, Switzerland; IRSTEA Grenoble, Unité de Recherche Erosion Torrentielle, Neige et Avalanches, BP 76, Saint-Martin-d'Hères, France
Recommended Citation:
Bechet J,, Duc J,, Jaboyedoff M,et al. Erosion processes in black marl soils at the millimetre scale: Preliminary insights from an analogous model[J]. Hydrology and Earth System Sciences,2015-01-01,19(4)