Influence of cryptogamic crust disturbance to wind erosion on sand and loam rangeland soils

Auteurs :
LEYS, J.F.
ELDRIDGE, D.J.

Description :
This paper reports on a study using a portable field wind tunnel to investigate the relative sediment fluxes and threshold wind velocities of two soils with three levels of surface crust disturbance : nil, moderate and severe. A sheep's foot roller was used to simulate the disturbance caused by domestic stock. Hypotheses about the role of cryptogamic crusts in providing soil protection from wind erosion by binding the surface and increasing its surface roughness are explored.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 11, p. 963-974, Collation : Illustration, Références bibliographiques : 47 ref.

Date :
1998

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