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Regional ecosystem details for 1.5.15

Regional ecosystem 1.5.15
Vegetation Management Act class Least concern
Wetlands Not a Wetland
Biodiversity status No concern at present
Subregion 3, 1, 2.8, (4.2), (2.2), (2.3), (2), (4.7)
Estimated extent1 Pre-clearing 14000 ha; Remnant 2021 14000 ha
Short description Aristida contorta annual grasslands on hard setting red soils
Structure code Open Tussock Grassland
Description Aristida contorta annual grasslands, usually with Aristida inaequiglumis, that are bare for most of the year and can be dominated by forbs. Occurs on older alluvium and residual soils. Not a Wetland. (BVG1M: 31b).
Fire management guidelines SEASON: Storm season to very early dry season. INTENSITY: Low with occasional moderate. INTERVAL: 4 - 10 years. Adjust intervals/frequency according to rainfall-drought cycles, fuel accumulation and previous fire history. INTERVAL_MIN: 4. INTERVAL_MAX: 10. 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: Seasonal rainfall is a key driver of fuel and therefore fire extent and frequency. Adjust fire regime according to wet season. Too frequent fire can promote annual grasses over perennial.
Comments 1.5.15: This vegetation community was previously mapped as 1.5.6a. Occurs in southern and central parts of the bioregion on hard setting red soils.

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