Validation of WEQ, RWEQ and WEPS wind erosion for different arable land management systems in the Argentinean Pampas

ICAR 6 : Aeolian processes. Special issue

Auteur(s) et Affiliation(s)

BUSCHIAZZO, D.E.

INTA, Anguil, Argentine

Fac. de Agronomía, UNLPam, Argentine

CONICET, Argentine

ZOBECK, T.M.

USDA-ARS,Texas, Lubbock, Etats-Unis

SHAO, Y.

Inst. for Geophysics and Meteorology, Univ., Köln, Allemagne

KOHFELD, K.E.

School of Resource and Environmental Management, Simon Fraser Univ., Burnaby, Canada

Description :
As an effort to apply wind erosion models, the AA. compared field wind erosion measurements carried out during 4 years in a bare soil reference plot and during 3 years in the same soil with different tillage conditions. Wind erosion was predicted with : 1) subroutines for single storm event versions of the wind erosion prediction system (WEPS) and the revised wind erosion equation (RWEQ), for which the climatic data of each single storm were used, and 2) the wind erosion equation (WEQ) for full rotation periods, for which long-term climatic records (1961-2004) were used. High plant or residue soil coverage as well as high oriented surface roughness eliminated erosion according to WEPS and RWEQ. These results indicated that WEQ can be used as a reliable prediction model for long-term predictions of wind erosion in the semi-arid pampas, even when run with limited available climatic data for this region.

Type de document :
Congrès

Source :
Internat. Conf. on Aeolian Research (ICAR 6), 6, Guelph, Canada, 2006-07-24/2006-07-26, Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 12, p. 1839-1850, nombre de pages : 12, Références bibliographiques : 1 p.

Date :
2008

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais