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Presented at AURISA 2000 -The 28th Annual Conference of AURISA Hyatt Coolum Resort, Coolum QLD, 20-24 November 2000
 

Summary: Presented at AURISA 2000 - The 28th Annual Conference of AURISA
Hyatt Coolum Resort, Coolum QLD, 20-24 November 2000
Quantifying Landscape Fragmentation in the Lockyer
Valley Catchment, Queensland: 1973 1997
Armando A. Apan*, Steven S. Raine and Mark S. Paterson
Faculty of Engineering and Surveying
University of Southern Queensland
Toowoomba, QLD 4350 Australia
*Phone: +61 7 4631-1386 Fax: +61 7 4631-2526
Email: apana@usq.edu.au
ABSTRACT
Fragmentation has become a central issue in landscape ecology and conservation. The breaking
up of large land areas into smaller patches is known to influence many ecological patterns and
processes. Thus, landscape fragmentation needs to be assessed and monitored. In this study of
the Lockyer Creek Catchment in Queensland, landscape fragmentation was quantified using
1973 and 1997 Landsat images and other thematic layers. Landscape metrics (focusing on the
size, shape, density, and isolation of woody vegetation) were calculated using the Patch Analyst
(Grid) extension of ArcView GIS. The nature of fragmentation was further characterised based
on landscape features including land use/cover, tenure, slope, as well as distance to roads and
streams.

  

Source: Apan, Armando - Faculty of Engineering and Surveying, University of Southern Queensland

 

Collections: Geosciences; Engineering