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Comparative measurements with seven rainfall simulators on uniform bare fallow land

Iserloh, T. and Ries, J. B. and Cerdá, A. and Echeverría, M. T. and Fister, W. and Geißler, C. and Kuhn, N. J. and León, F. J. and Peters, P. and Schindewolf, M. and Schmidt, J. and Scholten, T. and Seeger, M.. (2013) Comparative measurements with seven rainfall simulators on uniform bare fallow land. Zeitschrift für Geomorphologie. Supplementbände. Neue Folge, 57 (1). pp. 11-26.

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Official URL: http://edoc.unibas.ch/dok/A6124431

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Abstract

To assess the inflfl uence of rainfall simulator type and plot dimensions on runoff and erosion, seven small portable rainfall simulators from Freiberg, Tübingen, Trier (all Germany), Valencia, Zaragoza (both Spain), Basel (Switzerland) and Wageningen (the Netherlands) were compared on a prepared bare fallow fifi eld. The experiments were carried out during an international rainfall simulator workshop, organized at Trier University (Germany) from 30th of June to 1st of July 2011.The tested rainfall simulators differ in design, rainfall intensities, rain spectra, etc. and represent most of the devices which have been used over the last decade in Europe. The plots for the different rainfall simulators were selected as similar as possible concerning soil physical and chemical properties, aspect and inclination and were chosen to be placed side by side in horizontal direction. Test procedure was standardized in order to examine the inflfl uence of the rainfall simulator andplot dimension only. The results show a clear and consistent relationship in runoff, erosion and infifi ltration behaviour of the different used rainfall simulators. With all the devices total soil loss is measurable, but different plot sizes, intensities and kinetic energies of the simulated rainfall caused differences in soil loss and runoff quantities per unit of area. Regarding course characteristics over runs, similarities could be observed especially in runoff behaviour. The rainfall simulators (> 1 m² plot size) are able to reproduce infifi ltration and interrillerosion processes. With an increase of plot size (≥ 1 m²), rill-erosion will be also reflfl ected. Therefore it can be concluded that up to a certain plot size, the results of the different simulators are comparable and depend in their magnitude on the properties of the applied rainfall. The increase in process complexity with increasing plot size shows, that the scale of the simulation is one of the most important parameters to be taken intoaccount when comparing values of erosion and runoff.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geographie > Physiogeographie und Umweltwandel (Kuhn)
UniBasel Contributors:Fister, Wolfgang and Kuhn, Nikolaus J.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Gebrüder Borntraeger Verlagsbuchhandlung
ISSN:1864-1687
Note:Also published in: Zeitschrift für Geomorphologie. Supplementbände. Neue Folge, Vol. 57, no. 1, Rainfall simulation experiments with small scale simulators. - Berlin : Bornträger. - Vol. 57, Suppl. 1 (2013), S. 11-26 -- Publication type according to Uni Basel Research Database: Journal article
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Last Modified:30 Nov 2017 14:47
Deposited On:24 May 2013 09:18

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