Modelling hillslope soil water status during drainage

Auteur :
ANDERSON, M. G.

Description :
A model is used to simulate soil water conditions during drainage on a range of hillslopes having differing soil parameters and topographies. It is demonstrated that only in the specific cases of high hydraulic conductivities (> 10 cm sec) and high slopes (> 25) do soil water flow paths always converge into hillslope hollows. For all other conditions simulated, more complex patterns of cross hollow-spur movements were shown to occur, with the possibilities of higher soil water potentials existing on the downstream spur location than in the centre of the adjacent upslope hollow. It is concluded that improvements in the identification of particular requirements for differing soil water flow configurations will only be effected when greater information is available on stochastic effects, such as local variations in soil parameter values.


Type de document :
Article de périodique

Source :
Institute of British geographers transactions London, 1982, vol. 7, n°. 3, p. 337-353, Références bibliographiques : 14 réf.

Date :
1982