Identifying sediment sources and sinks in the Root river, Southeastern Minnesota

Auteur(s) et Affiliation(s)

STOUT, J.C.

Dept. of Resource Management and Geography , Univ., Melbourne, Australie

BELMONT, P.

Dept. of Watershed Sciences , Utah State Univ., Logan, Etats-Unis

WILLENBRING, J.K.

Dept. of Earth and Environmental Science , Univ. of Pennsylvania, Philadelphia, Etats-Unis

Description :
The AA. identify sediment sources and sinks in the Root river watershed, Southeastern Minnesota. They document a shift in hydrologic regime and that sediment fluxes are sensitive to both magnitude and sequence of flood events. Geomorphic analysis indicates that many river reaches have accessible near-channel sources that contribute the dominant proportion of the washload flux in subwatersheds. Lastly, geochemical tracer analyses of floodplains and hillslope soils indicate that historic erosion has been variable across the landscape and the majority of suspended sediment in the river today is sourced from floodplains and terraces.

Type de document :
Article de périodique

Source :
Annals of the Association of American Geographers, issn : 0004-5608, 2014, vol. 104, n°. 1, p. 37-41, nombre de pages : 5, Références bibliographiques : 2 p.

Date :
2014

Editeur :
Pays édition : Etats-Unis, Washington, DC, Association of American Geographers

Langue :
Anglais