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(Article of periodic en Anglais - 2011)

Document title

Modelling wind-blown sediment transport around single vegetation elements

Authors(s) and Affiliation(s)

LEENDERS J.K. (1 2) ; STERK G. (3) ; VAN BOXEL J.H. (4) ;
(1) HKV Consultants, Lelystad, PAYS-BAS
(2) Land Degradation and Development Group, Univ., Wageningen, PAYS-BAS
(3) Dep. of Physical Geography, Fac. of Geosciences, Univ., Utrecht, PAYS-BAS
(4) Inst. for Biodiversity and Ecosystem Dynamics, Univ., Amsterdam, PAYS-BAS

Abstract

Starting with the selection of a suitable transport equation from 4 possible sediment transport equations, the effects of a single vegetation element on wind speed were parameterized. The model was tested with field data on wind speed and sediment transport measured around isolated shrubs in a farmer's field in the north of Burkina Faso. The simple empirical equation of Radok performed best in modelling soil erosion and sediment transport, both for the entire event duration and for each minute within an event. The variability in wind direction created a ‘rotating’ area of influence around the shrub. Compared to field measurements the model predicted an 8% larger reduction in sediment transport in the lee of the vegetation element, and a 22% larger increase beside the vegetation element

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no9 [pp. 1218-1229]

Bibliographic references : 1,5 p.

Collation : 7 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2147

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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