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Regional ecosystem details for 6.4.4

Regional ecosystem 6.4.4
Vegetation Management Act class Least concern
Wetlands Not a Wetland
Biodiversity status No concern at present
Subregion 8, (4), (4.4), (11.26)
Estimated extent1 Pre-clearing 25000 ha; Remnant 2021 17000 ha
Short description Acacia harpophylla and/or A. cambagei low woodland on Quaternary clay deposits
Structure code Low Woodland
Description Acacia harpophylla and/or A. cambagei low woodland. Eucalyptus spp. may occur as emergents. A number of scattered low tree and tall shrubs species are usually present. Low shrubs are frequent, but may be locally abundant. The ground layer is frequently sparse, although annual grasses and forbs may be seasonally abundant. Occurs on flat to gently undulating plains formed on Quaternary clay deposits. Associated soils range from very deep, strong gilgai microrelief, grey to reddish brown clays to texture contrast soils. Not a Wetland. (BVG1M: 25a).
Supplementary description Dawson (1974), G5 (LU 70); Neldner (1984), 42a, 42b
Fire management guidelines INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not target for fires. Control fuel loads in the surrounding vegetation. Can tolerate only very early dry season fires, under mild conditions, that trickle along the ground layer. ISSUES: Brigalow is soft-seeded, so germination is not promoted by fire. Brigalow is only tolerant of mild fires trickling underneath, and can be damaged or killed by moderate to high intensity fires. Exotic grasses, such as Buffel grass, carry intense fires into these communities and can cause tree deaths. Control of fuel loads in the surrounding vegetation is important.
Comments 6.4.4: Some areas subject to tree clearing. The density and composition of the shrub and ground layers varies with the location and the seasonal conditions.

1 Estimated extent is from version 13.1 pre-clearing and 2021 remnant regional ecosystem mapping. Figures are rounded for simplicity. For more precise estimates, including breakdowns by tenure and other themes see remnant vegetation in Queensland.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024