Eleven. River Behaviour

  1. Kirstie A. Fryirs1 and
  2. Gary J. Brierley2

Published Online: 28 SEP 2012

DOI: 10.1002/9781118305454.ch11

Geomorphic Analysis of River Systems: An Approach to Reading the Landscape

Geomorphic Analysis of River Systems: An Approach to Reading the Landscape

How to Cite

Fryirs, K. A. and Brierley, G. J. (2012) River Behaviour, in Geomorphic Analysis of River Systems: An Approach to Reading the Landscape, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781118305454.ch11

Author Information

  1. 1

    Department of Environment and Geography, Macquarie University, North Ryde, NSW 2109, Australia

  2. 2

    School of Environment, University of Auckland, Auckland, New Zealand

Publication History

  1. Published Online: 28 SEP 2012
  2. Published Print: 16 NOV 2012

ISBN Information

Print ISBN: 9781405192750

Online ISBN: 9781118305454

SEARCH

Keywords:

  • flux boundary conditions;
  • landscape;
  • river adjustment;
  • river behaviour;
  • river change;
  • river evolution diagram;
  • river responses

Summary

River behaviour varies markedly at differing flow stages. This chapter first defines the key concepts of river behaviour and change. It then differentiates vertical, lateral and wholesale forms of river adjustment for differing types of rivers, drawing together insights into channel geometry, and channel and floodplain geomorphic units. Collectively, these differing forms of adjustment determine the natural capacity for adjustment for differing types of rivers. Magnitude-frequency relationships that fashion these different forms of adjustment for different types of rivers are also outlined. Assessment of the behavioural regime of differing river types by reading the landscape is summarised in terms of river adjustments at low flow stage, bankfull stage and overbank stage. A conceptual framework, river evolution diagram, for representing river behaviour is presented, followed by a brief summary of the river responses to altered flow and sediment flux boundary conditions.