Uncertainty in modelling the detachment of soil by rainfall

Rainfall simulation in geomorphology

Auteurs :
PARSONS, A.J.
GADIAN, A.M.
PARSONS, A.J.

Description :
The AA. show that rainfall kinetic energy (and hence soil detachment) does not bear a simple relationship to intensity. For low-intensity rainfall, observed variations in drop-size distributions indicate that soil detachment, at a given rainfall intensity, may vary by about a factor of two. Comparable estimates of variation in soil detachment at high rainfall intensity are not possible because of a dearth of observational data on variation in drop-size distributions in high-intensity rainfall. Variation in drop-size distributions in natural rainfall may, therefore, account for a significant component of differences between observed soil detachment and that predicted by models of soil erosion.


Type de document :
Article de monographie

Source :
Earth surface processes and landforms, issn : 0197-9337, 2000, vol. 25, n°. 7, p. 723-728, Collation : Illustration, Références bibliographiques : 21 ref.

Date :
2000

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