Preliminary modelling of sediment production and delivery in the Xihanshui River basin, Gansu, China

Sediment sources and sediment delivery under environmental change. Special issue

Auteur(s) et Affiliation(s)

DING, J.

Dep. of geography, Univ., Cambridge, Royaume-Uni

RICHARDS, K.

Dep. of geography, Univ., Cambridge, Royaume-Uni

WALLING, D.E.

Dep. of Geography, Univ., Exeter, Royaume-Uni

BOGEN, J.

Norwegian Water Resources and Energy Directorate, Oslo, Norvege

PORTO, P.

Univ., Reggio Calabria, Italie

Description :
This paper describes the preliminary application of a spatially-distributed method to quantify patterns and rates of sediment production in the Xihanshui basin, a tributary of the upper Yangtze; and to predict its routing to a downstream point, accounting for losses in deposition. This is based on a use of SedNet, a distributed model in which the component processes are represented by reduced complexity sub-models to facilitate application at large spatial scales. The purpose of this paper is therefore to assess the relative importance of sediment production processes under different climate and land cover conditions, and the controls of the spatial structure of delivery ratios within this large catchment, rather than to make explicit forecasts of sediment production and yield for practical purposes.

Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 2009, vol. 79, n°. 3, p. 277-287, nombre de pages : 11, Références bibliographiques : 0,5 p.

Date :
2009

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

Langue :
Anglais