A field experiment on streambed stabilization by gravel structures

Auteurs :
OLDMEADOW, D.F.
CHURCH, M.

Description :
The AA. report an experiment to study particle restraint imposed by bed surface aggregate structures in a small headwater stream, East Creek, east of Vancouver, British Columbia. They demonstrate both the effect of structure development on particle transport and the remarkable sensitivity of bedload to changes in sediment supply near threshold conditions. The series of floods during the study period in East Creek illustrates the dynamic nature of reach-averaged clast restraint. The development of bed structure is governed by the history of recent flows and depends strongly on local and external sediment supply.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2006, vol. 78, n°. 3-4, p. 335-350, nombre de pages : 16, Collation : Illustration, Références bibliographiques : 18 ref.

Date :
2006

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier