Post-fire mulching for runoff and erosion mitigation : Part I : Effectiveness at reducing hillslope erosion rates

Auteur(s) et Affiliation(s)

ROBICHAUD, P.R.

U.S. Dep. of Agriculture, Forest Service, Rocky Mountain Research Station, Moscow, Etats-Unis

LEWIS, S.A.

U.S. Dep. of Agriculture, Forest Service, Rocky Mountain Research Station, Moscow, Etats-Unis

WAGENBRENNER, J.W.

U.S. Dep. of Agriculture, Forest Service, Rocky Mountain Research Station, Moscow, Etats-Unis

ASHMUN, L.E.

U.S. Dep. of Agriculture, Forest Service, Rocky Mountain Research Station, Moscow, Etats-Unis

BROWN, R.E.

U.S. Dep. of Agriculture, Forest Service, Rocky Mountain Research Station, Moscow, Etats-Unis

Description :
The ability of mulch treatments to reduce sediment yields from natural rainfall and resulting overland flow was measured using hillslope plots on areas burned at high severity following 4 wildfires in the western United States : Hayman in Colorado (2002); Hot Creek and Myrtle Creek in Idaho (2003); and School in Washington (2005). Wheat straw mulch, wood strand mulch, and hydromulch were evaluated along with untreated control plots on multiple fires for 4 to 7 years after burning. It is shown that sediment yields were related to rain intensity, time since fire, and ground cover. Wood strand mulch reduced sediment yields for up to 4 post-fire years. Straw mulch reduced first post-fire year sediment yields at 2 of 4 fires. Hydromulch did not reduce post-fire sediment yields in any years.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 105, p. 75-92, nombre de pages : 18, Références bibliographiques : 2 p.

Date :
2013

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

Langue :
Anglais