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| Titel |
Erosion processes in black marl soils at the millimetre scale: preliminary insights from an analogous model |
| VerfasserIn |
J. Bechet, J. Duc, M. Jaboyedoff, A. Loye, N. Mathys |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 19, no. 4 ; Nr. 19, no. 4 (2015-04-20), S.1849-1855 |
| Datensatznummer |
250120686
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| Publikation (Nr.) |
 copernicus.org/hess-19-1849-2015.pdf |
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| Zusammenfassung |
| 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. |
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