Large-scale patterns of erosion and sediment transport in river networks, with examples from Australia

Prosser, Ian P., Rutherfurd, Ian D., Olley, Jon M., Young, William J., Wallbrink, Peter J. and Moran, Chris J. (2001) Large-scale patterns of erosion and sediment transport in river networks, with examples from Australia. Marine and Freshwater Research, 52 1: 81-99. doi:10.1071/MF00033


Author Prosser, Ian P.
Rutherfurd, Ian D.
Olley, Jon M.
Young, William J.
Wallbrink, Peter J.
Moran, Chris J.
Title Large-scale patterns of erosion and sediment transport in river networks, with examples from Australia
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
1448-6059
Publication date 2001-01-01
Sub-type Article (original research)
DOI 10.1071/MF00033
Open Access Status Not Open Access
Volume 52
Issue 1
Start page 81
End page 99
Total pages 19
Place of publication Collingwood, VIC, Australia
Publisher C S I R O Publishing
Language eng
Formatted abstract
This paper examines the patterns of sediment transport in rivers in terms of the sources of sediment and its transport and deposition through the river network. The analysis is in the context of dramatic human influences on river sediment transport and how they might influence freshwater ecosystems. The review of Australian work shows that erosion of hillslopes and stream banks has greatly increased in historical times, supplying vast quantities of sediment to rivers, much of which is still stored within the river system. The stored sediment will continue to effect in-stream and estuarine ecosystems for many decades. In most Australian catchments the dominant source of sediment is streambank erosion. An analysis of historical channel widening suggests that a conceptual framework of relative stream power can explain the diversity of behaviour observed in the numerous case studies. Sediment delivery through catchments is considered first in a generic whole network sense, which emphasizes the crucial role played by riverine deposition in determining catchment sediment budgets. A method is then presented for analysing the diverse spatial patterns of sediment storage in any river network. Finally, the paper considers the temporal changes to channel morphology in response to a human-induced pulse of sediment.
Keyword Fisheries
Limnology
Marine & Freshwater Biology
Oceanography
New-south-wales
Gravel-bedded Rivers
Bank Erosion
Soil-erosion
Southeastern Australia
Murrumbidgee River
Hydrologic Regime
Channel Networks
Incipient Motion
Clay Discharges
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Special issue: "Frontiers in catchment biogeochemistry: introduction to a collection of papers". Selected peer-reviewed papers from a conference on catchment biogeochemistry held in the CSIRO Discovery Centre in Canberra, ACT, Australia during November 1999.

Document type: Journal Article
Sub-type: Article (original research)
Collection: Sustainable Minerals Institute Publications
 
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Created: Mon, 13 Aug 2007, 22:33:38 EST