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(Article of periodic en Anglais - 2011)

Document title

Numerical study on the effects of floodplain vegetation on river planform style

Authors(s) and Affiliation(s)

CROSATO A. (1 2) ; SAMIR SALEH M. (1) ;
(1) UNESCO-IHE, Dep. of Water Engineering, Delft, PAYS-BAS
(2) Univ. of Technology, Fac. of Civil Engineering and Geosciences, Delft, PAYS-BAS

Abstract

The effects of floodplain vegetation on river planform have been investigated for a medium-sized river using a 2D morphodynamic model with submodels for flow resistance and plant colonization. The flow resistance was divided into a resistance exerted by the soil and a resistance exerted by the plants. Bank erosion was related to bed degradation at adjacent wet cells. Bank advance and retreat were reproduced as drying and wetting of the computational cells at the channel margins. The model was applied to a hypothetical case with the same characteristics as the Allier River (Auvergne, France). The river was allowed to develop its own geometry starting from a straight, uniform, channel. Different vegetation densities produced different planforms (braided planforms, incipient meanders)

Source

Article of periodic

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

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

Millesime : 2011, vol. 36, no6 [pp. 711-720]

Bibliographic references : 58 ref.

Collation : 9 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2088

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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