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Soil erosion in Mediterranean landscapes : Experimental investigation on crusted surfaces by means of the Portable Wind and Rainfall Simulator

Ries, J. B. and Marzen, M. and Iserloh, T. and Fister, W.. (2013) Soil erosion in Mediterranean landscapes : Experimental investigation on crusted surfaces by means of the Portable Wind and Rainfall Simulator. Journal of Arid Environments, 100-101. pp. 42-51.

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Official URL: http://edoc.unibas.ch/dok/A6194502

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Abstract

The influence of wind on raindrops and subsequent processes of soil detachment and transport on natural soil surfaces is an essential gap of knowledge. The urgently required data about reactions, interactions and actual impact on soil erosion rates are generally produced under laboratory conditions on highly disturbed substrates, which cannot reflect natural system responses. The Portable Wind and Rainfall Simulator was applied on autochthonous soils in semi-arid Spain to investigate and quantify the relative impact of wind-driven rain on total erosion. On highly degraded crusted soils and freshly ploughed orchard soils in semi-arid Spain, total erosion measured during experiments (30 min; 96 mm h-1) were 28.8 - 150.4 g m-2 and 29.5 - 30.7 g m-2, respectively. Concerning the relative impact of wind-driven rain on total erosion, ambiguous results were obtained: the difference to erosion generated by windless rain ranged from +37.4 to -24.2%, to sediment concentration from +46.7 to -20.6% and to runoff coefficients from +18.8 to -7.4%.The study indicates a potentially very strong impact of wind-driven rain and underlines the paramount importance of experimental data derived on autochthonous soil surfaces for process understanding, realistic assessment of soil erosion rates and application in soil erosion models.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geographie > Physiogeographie und Umweltwandel (Kuhn)
UniBasel Contributors:Fister, Wolfgang
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:1095-922X
e-ISSN:0140-1963
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:30 Nov 2017 14:50
Deposited On:06 Dec 2013 09:35

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