Temporal and spatial variability in root reinforcement of streambanks : accounting for soil shear strength and moisture

Auteur :
POLLEN, N.

Description :
This paper focuses on the process involved in mechanical root-reinforcement of streambanks. An equation to predict the frictional resistance of root-soil bonds was tested against field data collected at Long Creek, Mississippi (MS), under 2 soil moisture conditions. The root pullout equations were then included in the root-reinforcement model, RipRoot, and bank stability model runs for Goodwin Creek, (MS), were carried out in order to examine the effects of spatial and temporal variations in soil shear strength and rooting density, on streambank factor of safety. Root reinforcement was shown to increase bank stability under the entire range of soil moisture conditions modeled.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2007, vol. 69, n°. 3, p. 197-205, nombre de pages : 9, Collation : Illustration, Références bibliographiques : 32 ref.

Date :
2007

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena