Regional ecosystem details for 2.3.43
| Regional ecosystem | 2.3.43 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 8, 3, 4.5 |
| Estimated extent1 | Pre-clearing 8000 ha; Remnant 2021 8000 ha |
| Short description | Sporobolus mitchellii +/- Cyperus bifax, Astrebla elymoides, Chenopodium auricomum tussock grassland on seasonally inundated alluvial plains and drainage depressions |
| Structure code | Tussock Grassland |
| Description | Sporobolus mitchellii tussock grassland to closed tussock grassland, commonly with (or occasionally dominated by) Cyperus bifax, Astrebla elymoides and Chenopodium auricomum. Areas of longer term inundation may include Elytrophorus spicatus, Duma florulenta, Oryza australiensis, Schoenoplectiella dissachantha and Ipomoea diamantinensis. Occurs on seasonally inundated alluvial plains and linear drainage depressions in the Gilliat Channels. Cracking clay soils. Not a Wetland. (BVG1M: 32a). |
| 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 south of latitudes below 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 | 2.3.43: Was previously mapped as 2.3.12x1. Threatening processes associated with potential expansion of intensive agriculture in the area. |
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.
