Spatial variability in the timing, nature and extent of channel response to typical human disturbance along the Upper Hunter River, New South Wales, Australia

Auteur(s) et Affiliation(s)

HOYLE, J.

Dept. of Physical Geography, Environmental Life Sciences, Univ., Macquarie, Australie

BROOKS, A.

Australian Rivers Inst., Griffith University, Nathan, Australie

BRIERLEY, G.

School of Geography, Geology and Environmental Science, Univ., Auckland, Australie

FRYIRS, K.

Dept. of Physical Geography, Environmental Life Sciences, Univ., Macquarie, Australie

LANDER, J.

Dept. of Physical Geography, Environmental Life Sciences, Univ., Macquarie, Australie

Description :
Analyses of floodplain sedimentology, archival records, parish maps and aerial photographs document marked spatial variability in the pattern of channel change since European settlement in the 1820s. Different types, rates and extents of change are reported from 7 zones of adjustment along an 8 km study reach.This variable adjustment reflects imposed antecedent controls (burried terrace material and bedrock), which have significantly influenced local variability in river sensitivity to change, as well as contemporary morphodynamics and geomorphic complexity. Local variability in system responses to disturbance has important implications for future river management and rehabilitation.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 6, p. 868-889, nombre de pages : 22, Références bibliographiques : 2 p.

Date :
2008

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

Langue :
Anglais