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dc.contributor.author
de Oro, Laura Andrea
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dc.contributor.author
Colazo, Juan Cruz
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dc.contributor.author
Buschiazzo, Daniel Eduardo
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dc.date.available
2018-05-04T21:44:38Z
dc.date.issued
2016-03
dc.identifier.citation
de Oro, Laura Andrea; Colazo, Juan Cruz; Buschiazzo, Daniel Eduardo; RWEQ-Wind erosion predictions for variable soil roughness conditions; Elsevier; Aeolian Research; 20; 3-2016; 139-146
dc.identifier.issn
1875-9637
dc.identifier.uri
http://hdl.handle.net/11336/44249
dc.description.abstract
The soil surface roughness is a main factor in all wind erosion prediction models, including the Revised Wind Erosion Equation (RWEQ). The objective of this study was to test the erodibility of two typical soils of the semiarid Argentinean Pampas under three different tillage conditions (compared to a flat surface) at three wind velocities using a wind tunnel and to evaluate the performance of the RWEQ model. Results showed that all rough surfaces were less eroded by wind than a flat surface (FS) in both soils and all wind velocities. An exception was LB (lister-bedder) in the Haplustoll that showed similar erosion than FS. Wind erosion increased rapidly above 16.5 m s−1 wind velocity in all tillage conditions. The relative wind erosion (RE) calculated with the RWEQ (K′ factor) fitted well with measured RE, except for K′ < 0.1 (rougher surface) where the measured RE were much higher than the predicted. More than 70% of RE variability was explained by the oriented roughness (Kr) in both soils. The aforementioned indicates that Kr can be used instead of K′ (a value that contains both, Kr and the random roughness – Crr factors) to predict wind erosion with RWEQ in the studied soils. Absolute wind erosion amounts predicted with RWEQ fitted well with measured data only for DT, mainly at low wind velocity. For the other tillage tools, the model did not apply well as it underestimated the erosion for the rougher soil surface condition (LB) and overestimated it for the less rough surface (DH).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Soil Surface Roughness
dc.subject
K' Factor
dc.subject
Wind Erosion
dc.subject
Rweq Model
dc.subject
Wind Tunnel Simulations
dc.subject
Loess Soils
dc.subject.classification
Ciencias del Suelo
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
RWEQ-Wind erosion predictions for variable soil roughness conditions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-04T15:09:15Z
dc.journal.volume
20
dc.journal.pagination
139-146
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: de Oro, Laura Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
dc.description.fil
Fil: Colazo, Juan Cruz. Instituto Nacional de Tecnología Agropecuaria. Centro Regional La Pampa-San Luis. Estación Experimental Agropecuaria San Luis; Argentina
dc.description.fil
Fil: Buschiazzo, Daniel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
dc.journal.title
Aeolian Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.aeolia.2016.01.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1875963716300039
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