IGB

Connexion

(Article of periodic en Anglais - 2012)

Document title

Combining historical and process perspectives to infer ranges of geomorphic variability and inform river restoration in a wandering gravel-bed river

Authors(s) and Affiliation(s)

WOELFLE-ERSKINE C. (1) ; WILCOX A.C. (1) ; MOORE J.N. (1) ;
(1) Dep. of Geosciences, Univ. Montana, Missoula, ETATS-UNIS

Abstract

Analysis of historical sources and aerial photographs of the Clark Fork River's pre-mining, mining, and more recent history suggest that a wandering channel pattern has persisted despite variations in sediment supply and transport capacity. Predictive metrics for channel pattern also suggest a wandering pattern, transitional between braided and meandering, in this geomorphic setting. These analyses suggest that the creation of a single-thread meandering channel, which incorporates structures to limit erosion and channel movement, is inconsistent with the historical range of variability in this reach. The perils of restoring channels to a condition different than the historical range of variability for their geomorphic setting were illustrated on the Clark Fork by flood-induced avulsions of the restored channel that occurred soon after project construction

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no12 [pp. 1302-1312]

Bibliographic references : 2 p.

Collation : 10 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3276

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 27148460 : Permanent link - XML version
Powered by Pxxo