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.
