Regional ecosystem details for 2.3.40
| Regional ecosystem | 2.3.40 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 5, 9, (3), (4.6), (9.5), (4.5) |
| Estimated extent1 | Pre-clearing 100000 ha; Remnant 2021 97000 ha |
| Short description | Eucalyptus microtheca and/or E. microneura and/or Lysiphyllum spp. open woodland on active Quaternary alluvial plains |
| Structure code | Low Woodland |
| Description | Eucalyptus microtheca and/or E. microneura and/or Lysiphyllum spp. open woodland to low woodland, occasionally with Corymbia confertiflora, Grevillea striata and Corymbia terminalis. A lower tree or shrub layer may occur, including Hakea arborescens, Petalostigma banksii, Flueggea virosa and Carissa lanceolata. The ground layer is tussock grasses, including Enneapogon spp., Aristida spp. and Eragrostis spp. Occurs on active, sandy and silty Quaternary alluvial plains, commonly with braided channels, on tributaries of the Flinders River in the south-east of the bioregion. Not a Wetland. (BVG1M: 16c). |
| Fire management guidelines | SEASON: Commence early in dry season as soon as ground fuels can carry fire with fire extinguishing early evening. Continue to mid-dry season. INTENSITY: Low to moderate with occasional high intensity. INTERVAL: 1-5 years, but do not burn the same patches annually. Landscape mosaic should consist of patches with different times since burning. INTERVAL_MIN: 1. INTERVAL_MAX: 5. STRATEGY: Break up continuity of fuel across the landscape so that impact of late-season wildfire is minimised. Wildfire due to dry storms late in the dry season or in the early wet are natural occurrences, but they can burn over a wide area of the landscape with unwanted intensity and frequency. Use broad scale mosaic burning. ISSUES: Overabundant seedlings and saplings can lead to woody thickening if unchecked by fire. A long absence of fire or low intensity fire too early in the season may lead to overabundant seedlings and saplings. If ground fuels are sparse spell pastures prior to planned burns. Weeds such as buffel grass and rubbervine may be an issue for some tussock grass communities because weeds increase fuel loads leading to high intensity fires. Overgrazing can reduce fuel loads and give woody species a competitive advantage. |
| Comments | 2.3.40: Lysiphyllum cunninghamii and L. carronii potentially occur in this regional ecosystem. Subject to degradation from high total grazing pressure. |
1 Estimated extent is from version 13 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.
