Regional ecosystem details for 2.3.7
| Regional ecosystem | 2.3.7 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 5, 8, 3, (2), (1.3), (7), (4.5) |
| Estimated extent1 | Pre-clearing 105000 ha; Remnant 2021 99000 ha |
| Short description | Acacia cambagei +/- Eucalyptus microtheca low woodland on fine-textured Quaternary alluvial plains |
| Structure code | Low Woodland |
| Description | Acacia cambagei low woodland, occasionally with Eucalyptus microtheca. The ground layer is tussock grasses, including Sporobolus spp., Astrebla spp. and Iseilema spp. Occurs on fine-textured Quaternary alluvial plains. Grey calcareous cracking clays and redder clays, often with gravel, minor texture contrast. Not a Wetland. (BVG1M: 26a). Vegetation communities in this regional ecosystem include: 2.3.7a: Acacia cambagei low woodland to woodland. A shrub layer may occur, including Carissa lanceolata and Excoecaria parvifolia. The sparse ground layer is tussock grasses, including Echinochloa colona*, Astrebla spp. and Iseilema spp. Occurs on depressions and active Quaternary alluvial plains. Not a Wetland. (BVG1M: 26a). 2.3.7b: Acacia cambagei and Eucalyptus microtheca low woodland. The sparse ground layer is mixed tussock grasses. Occurs on plains of braided, active Quaternary alluvial systems. Not a Wetland. (BVG1M: 26a). 2.3.7x50: [RE not in use]²: This regional ecosystem is now mapped as 2.5.38. Acacia cambagei, Grevillea striata and Atalaya hemiglauca low open woodland, occasionally with Corymbia aparrerinja and other Acacia spp. A diverse shrub layer commonly occurs, including Eremophila spp., Acacia spp. and Santalum lanceolatum. The ground layer is tussock grasses. Occurs on Quaternary sand sheets overlying Tertiary clay plains. Red sands and loams, commonly with surface gravel. Not a Wetland. (BVG1M: 26a). |
| Supplementary description | Neldner (1991), 5; Perry et al. (1964), Georgina, Monstraven, Gregory |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Manage surrounding fire-adapted areas to create landscape mosaic of burnt and unburnt to mitigate against impact of wildfires. ISSUES: Vulnerable to repeated, high intensity fires. However, low or discontinuous fuel loads protect these communities. The invasive grass buffel draws fires into Acacia communities to the detriment of these communities. Fire plays no role in regeneration of gidgee. |
| Comments | 2.3.7: Subject to clearing for grazing. 2.3.7a: Subject to clearing for grazing. 2.3.7b: Subject to clearing for grazing. |
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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use. It is included in the regional ecosystem description database because the RE code may appear in older versions of RE mapping and the Vegetation Management regulation.
