Mots-clés
Arizona ; Couvert végétal ; Domaine aride ; Domaine semi-aride ; Eolien ; Erosion des sols ; Erosion éolienne ; Etats-Unis ; Expérimentation ; Friche ; Vitesse du ventAeolian features ; Arid area ; Arizona ; Experimentation ; Plant canopy ; Semi-arid area ; Soil erosion ; United States of America ; Wasteland ; Wind erosion ; Wind speedShear stress partitioning in sparsely vegetated desert canopies
Response of aeolian processes to global climate change
Auteur(s) et Affiliation(s)
WOLFE, S.A.
Terrain Sciences Division, Geological Survey of Canada, Yellowknife, NT, Canada
LANCASTER, N.
Desert Research Institute, Reno, Etats-Unis
Description :
Shear velocity ratios were derived for 6 neighbouring localities representing rangeland, abandoned farmland and a playa, in the semi-arid region of the Sonoran Desert. Near-surface and above-canopy wind speeds, mostly below saltation threshold, were used to evaluate the partitioning of shear velocities and shear stresses between the plant canopy and the surface. Results are discussed with the goal of assessing the protection provided by sparse vegetation against wind erosion.
Type de document :
Congrès
Source :
Workshop on the response of aeolian processes to global change, Zzyzx, Etats-Unis, 1994-03-24, Earth surface processes and landforms, issn : 0197-9337, 1996, vol. 21, n°. 7, p. 607-619, Collation : Illustration, Références bibliographiques : 19 ref.
Date :
1996
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)