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Evolution of mid-channel bars in a braided river and complex response to reservoir construction : an example from the middle Hanjiang River, China

Auteur(s) et Affiliation(s)

Inst. Geography, Chinese Academy of Sciences, Beijing, Chine


Description :
Using the middle Hanjiang River as an example, this paper deals with the development of mid-channel bars in a braided river, as controlled by channel boundary conditions, runoff and sediment load, as well as reservoir construction. Relations have been established between indices describing the mid-channel bars and the controlling variables, such as the channel width, the percentage silt-clay content in the channel boundary and the energy expenditure of flowing water. Bank erosion exerts a marked influence on the development of mid-channel bars after reservoir construction. A descriptive model showing the complex response has been established.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1997, vol. 22, n°. 10, p. 953-965, Collation : Illustration, Références bibliographiques : 16 ref.

Date :
1997

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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