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Pattern and process in riparian vegetation of the treeless high country of Australia

Citation

Kirkpatrick, J, Pattern and process in riparian vegetation of the treeless high country of Australia, Vegetation of Australian Riverine Landscapes: Biology, Ecology and Management, CSIRO Publishing, S Capon, C James and M Reid (ed), Australia, pp. 201-220. ISBN 9780643096318 (2016) [Research Book Chapter]

Copyright Statement

Copyright 2016 CSIRO

Official URL: http://www.publish.csiro.au/book/6504

Abstract

Australia's high mountains tend more to elevated vegetated plains than the steep, bare crumbling mountains copiously decorated by snow and ice characteristic of the plate collision alpine archetype. Consequently, these landscapes are rich in gentle streams in the depositional mode, as well as those that rush and cut. Unlike most of Australia, the high mountains receive more moisture from precipitation than they lose through evaporation, and a substantial part of the moisture input arrives as snow, hail or rime, to cover the landscape on time scales that vary spatially and from days to seasons.

The riparian vegetation that is the subject of this chapter occurs in the alpine and subalpine zones of Australia, not including the subantarctic islands. The alpine zone is defined as land above the limit of trees, which roughly corresponds to a mean daily temperature of the warmest month of 10C. Treeless vegetation of similar species composition to alpine vegetation also occurs extensively in the subalpine zone, defined roughly by the lower altitudinal limit of Eucalyptus niphophilus on mainland Australia (Costin et al. 2000), by the upper limit of the hummock sedge Gymnoschoenus sphaerocephalus in western Tasmania (Kirkpatrick and Brown 1987) and by the lower altitudinal limit of Eucalyptus coccifera in central and eastern Tasmania (Kirkpatrick 1999). Treeless vegetation in the subalpine zone and alpine vegetation are henceforth collectively called 'alpine vegetation' and the area they occupy 'alpine' following Kirkpatrick (1982, 1997).

In alpine areas, lotic and lentic wetlands tend to be less distinct than at lower altitudes, with snow patc~es, springs, lakes, ponds, bogs, fens and streams being frequently interacting parts of the same surface hydrological system and sharing many vascular plant species. All of these elements of the hydrological system are regarded in the present chapter as providing riparian habitat.

Item Details

Item Type:Research Book Chapter
Keywords:alpine, wetland, Australia, vegetation
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Terrestrial Ecology
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Flora, Fauna and Biodiversity of environments not elsewhere classified
Author:Kirkpatrick, J (Professor James Kirkpatrick)
ID Code:111518
Year Published:2016
Deposited By:Geography and Spatial Science
Deposited On:2016-09-20
Last Modified:2017-10-13
Downloads:0

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