inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Shear 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
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)