Ecosystem functioning across vegetation - production boundaries in brigalow (Acacia Harpophylla) in Southern Queensland

Collard, Stuart and Zammit, Charlie and Le Brocque, Andrew F. (2005) Ecosystem functioning across vegetation - production boundaries in brigalow (Acacia Harpophylla) in Southern Queensland. In: Ecological Society of Australia Annual Conference 2005 (ESA 2005), 28 Nov - 2 Dec 2005, Brisbane, Australia.

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Abstract

[Abstract]: This research compares the responses of soil carbon and herbaceous plant community composition to land use intensification across vegetation-production boundaries in agro-ecosystems of southern Queensland. Samples were taken at the core and edge of patches of remnant Brigalow vegetation and at the core and edge of adjacent areas of production matrix under varying management intensities. The relationship for soil carbon across the vegetation matrix boundary resembles a step function, with no detectable difference between core and edge in the same land management category. Comparisons of plant community composition also indicate no edge effect across the boundary. Soil carbon and plant community composition were also compared across four land management categories, including; 1) Brigalow vegetation, 2) uncultivated grassland, 3) previously cultivated grassland, and 4) current cultivation. Significant differences were found between all categories for both measured variables, with the exception of soil carbon in currently and previously cultivated areas. The usefulness of these variables as potential indicators of ecosystem functioning in highly fragmented and modified agricultural landscapes is considered.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Speech)
Refereed: Yes
Item Status: Live Archive
Additional Information: Conference publication consists of only the abstracts of the oral presentations given at the conference. Abstract only posted here.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:28
Last Modified: 08 Aug 2013 05:20
Uncontrolled Keywords: ecosystem functioning, land use intensification, vegetation-production boundaries, brigalow, Acacia Harpophylla, Southern Queensland
Fields of Research (FOR2008): 06 Biological Sciences > 0602 Ecology > 060208 Terrestrial Ecology
05 Environmental Sciences > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity
05 Environmental Sciences > 0502 Environmental Science and Management > 050209 Natural Resource Management
URI: http://eprints.usq.edu.au/id/eprint/795

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