Wind-tunnel modelling of the influence of vegetation structure on saltation threshold

Response of aeolian processes to global climate change

Auteur(s) et Affiliation(s)

MUSICK, H.B.

Dept. of Biology, University of New Mexico, Albuquerque, New Mexico, Etats-Unis

LANCASTER, N.

Desert Research Institute, Reno, Etats-Unis

Description :
This paper is concerned with the development of predictive relations for application to the natural or spontaneous vegetation cover of arid and semiarid lands. Wind-tunnel experiments using arrays of model roughness elements to simulate vegetation were conducted to determine the quantitative influence of vegetation structural attributes on saltation threshold. To this end, the influence on saltation threshold of lateral cover (also known as roughness density), element aspect ratio AR (= height/diameter), and element porosity were examined.

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. 589-605, Collation : Illustration, Références bibliographiques : 48 ref.

Date :
1996

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

Langue :
Anglais