Bed material texture in low order streams on the Queen Charlotte Islands, British Columbia

Auteurs :
RICE, S.
CHURCH, M.

Description :
This paper examines the nature and causes of variations in the bed material texture of two streams on the Queen Charlotte Islands. The extant, functional model is found to be inadequate for explaining observed changes in grain size parameters with distance downstream. Rather, grain size varies erratically over short distances. A stochastic model best describes the observed variations, and should be adopted as an alternative to the exponential model in low order links. Characteristic variances are controlled by the degree of hillslope-channel coupling, and the extent and characteristics of non-alluvial storage mechanisms.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1996, vol. 21, n°. 1, p. 1-18, Collation : Illustration, Références bibliographiques : 54 ref.

Date :
1996

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