Regional ecosystem details for 2.3.32
| Regional ecosystem | 2.3.32 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 8, 2, (3) |
| Estimated extent1 | Pre-clearing 10000 ha; Remnant 2021 10000 ha |
| Short description | Aristida spp., Eriachne glauca tussock grassland in depressions and valley bottoms in the Donors Plateau subregion |
| Structure code | Tussock Grassland |
| Description | Aristida spp., Eriachne glauca var. glauca tussock grassland, commonly with Fimbristylis spp. Other Eriachne spp. may occur. Emergent Corymbia grandifolia and Cochlospermum gregorii may occur. Occurs on gently sloping lower areas and broad open valleys of Tertiary plateaus (Donors Plateau subregion). Silty and sandy clay loams. Not a Wetland. (BVG1M: 32a). |
| Supplementary description | Perry et al. (1964), Cowan, Punchbowl, Manrika |
| Fire management guidelines | SEASON: March to April, with occasional storm burns if woody weeds are a problem. INTENSITY: Low, occasionally moderate and high intensities. INTERVAL: 3-6 years in latitudes south of Karumba, 1-3 years to the north. INTERVAL_MIN: 1. INTERVAL_MAX: 6. STRATEGY: Commence burning early in dry season to break up continuity of fuel across the landscape. Mosaic burning across the landscape at varying frequency will create patches at varying stages of post-fire response. Burn with good soil moisture to promote regeneration. ISSUES: Retaining grasslands by preventing woody thickening may be an issue in some situations. A long absence of fire or low intensity fire too early in the season may lead to overabundant seedlings and saplings. Invasive and high biomass grasses (e.g., buffel, Para and grader grasses) may increase fire severity to the detriment of these ecosystems. |
| Comments | 2.3.32: High total grazing pressure. |
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.
