A stochastic distributed model of soil erosion by overland flow

Auteurs :
WRIGHT, A. C.
WEBSTER, R.

Description :
A model has been built to simulate runoff and erosion on slopes of varying form with soil of varying hydraulic conductivity, porosity, storage capacity, and particle size distribution. The model takes into account spatially dependent random variation in the initial conditions of the soil. The rainfall is similarly both random and autocorrelated in space. Detailed results show how runoff is generated as a result of slow conductivity and high water table, how this leads to erosion, the degradation of the land surface, the capture of flow lines, and the development of networks of rills.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1991, vol. 16, n°. 3, p. 207-226, Références bibliographiques : 25 réf.

Date :
1991

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