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(Article of periodic en Anglais - 2009)

Document title

Role of a rheophyte in bench development on a sand-bed river in southeast Australia

Authors(s) and Affiliation(s)

ERSKINE W. (1) ; CHALMERS A. (1) ; KEENE A. (2) ; CHEETHAM M. (2) ; BUSH R. (2) ;
(1) Sustainable Use of Coasts and Catchments, School of Environmental and Life Sciences, Univ. of Newcastle, Ourimbah, AUSTRALIE
(2) Southern Cross Geoscience, Southern Cross Univ., Lismore, AUSTRALIE

Abstract

Casuarina cunninghamiana Miq. is an important rheophytic tree in New South Wales, because it is fast growing and can tolerate flood disturbance. Widden Brook is an active sand-bed stream that has widened substantially since initial European settlement in the early 1800s and is characterized by high flood variability and multi-decadal periods of alternating high and low flood frequency, called flood- and drought-dominated regimes. Channel contraction by bench formation is currently occurring. Recurring catastrophic floods or a sequence of large floods in rapid succession episodically destroy benches by substantial channel widening and initiate a new phase of bar and bench development. A conceptual model of the conversion of point bars to benches by thick mud deposition and C. cunninghamiana recruitment has been developed for sand-bed streams draining similar sandstone catchments

Source

Article of periodic

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

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

Millesime : 2009, vol. 34, no7 [pp. 941-953]

Bibliographic references : 1,5 p.

Collation : 7 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1778

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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