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Regional ecosystem details for 1.3.11

Regional ecosystem 1.3.11
Vegetation Management Act class Least concern
Wetlands Floodplain (other than floodplain wetlands).
Biodiversity status No concern at present
Subregion 4, (2.7), (3), (2), (2.2)
Estimated extent1 Pre-clearing 19000 ha; Remnant 2017 19000 ha
Extent in reserves High
Short description Eucalyptus chlorophylla open woodland on alluvium
Structure category Very sparse
Description Eucalyptus chlorophylla low open woodland and low woodland often with Eucalyptus pruinosa and/or Lysiphyllum cunninghamii with a mixed shrub layer and a ground layer of tussock grasses, often with Triodia pungens. Occurs on alluvial terraces associated with major and minor watercourses. (BVG1M: 18c)
Protected areas Boodjamulla (Lawn Hill) NP, Lawn Hill (Littles Range) RR, Lawn Hill (Stockyard Creek) RR, Lawn Hill (Arthur Creek) RR, Lawn Hill (Widdallion) RR
Fire management guidelines SEASON: Storm season to very early dry season. INTENSITY: Low with occasional moderate. INTERVAL: 4 - 10 years. Ensure some areas are long (10-20 years) unburnt. Adjust intervals/frequency according to rainfall-drought cycles, fuel accumulation and previous fire history. STRATEGY: Ensure burns are undertaken across the landscape at a range of frequencies to create a mosaic of times since fire. Apply numerous small burns every year to achieve a mosaic and reduce risks of wildfire across vast areas of the landscape. Maintain burnt areas < 20%. ISSUES: Rainfall is a major factor affecting spinifex growth, such that a very wet year or a series of wet years may boost the spinifex fuel load leading to the possibility of extensive wildfire in subsequent years. Buffel grass can promote high intensity fire. Fuel loads tend to be higher where there is a mix of tussock and spinifex grasses. This may be moderated by high grazing pressure. Overgrazing can give woody species a competitive advantage.
Comments This vegetation community was previously mapped as 1.3.5x2. Subject to high grazing pressure. Occurs mostly in sub-region 4.

1 Estimated extent is from version 11 pre-clearing and 2017 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.

Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
16 April 2019
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