Patches in a Heteropogon Contortus Dominated Grassland in Southeast Queensland their characteristics [Probable Causes, Implication and Potential for Rehabilitation

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Date
1993
Authors
Foustine Peter Wandera
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Foustine Peter Wandera
Abstract
The significance of vegetation patches dominated by Aristida spp. and ChrysoDogon fallax within the HeteroDogon contortus grasslands of southeast Queensland, was studied in terms of their abundance and size, botanical composition, productivity and nutritive value. The investigation was carried out on the CSIRO Narayen Research Station near Mundubbera from November 1990 until early 1993. Comparitive soil hydrologic, physical and chemical characteristics were determined for the patches and the HeteroDogon zone to investigate the role of soil variation in patch occurrence within a grazed landscape. The influence of grazing pressure on patch dynamics was monitored over time, and establishment of H. contortus into Aristida and Chrysopogon patches was attempted to investigate the possibility of rehabilitating the existing patches.
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