Regional ecosystem details for 2.9.3
| Regional ecosystem | 2.9.3 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 6, (4) |
| Estimated extent1 | Pre-clearing 24000 ha; Remnant 2021 23000 ha |
| Short description | Terminalia spp., Lysiphyllum cunninghamii and Corymbia confertiflora deciduous low woodland on undulating mudstone/siltstone plains |
| Structure code | Low Woodland |
| Description | Terminalia spp., Lysiphyllum cunninghamii and Corymbia confertiflora deciduous low open woodland to low woodland. A sparse shrub layer may occur, including canopy species, Melaleuca viridiflora and Dendrolobium arbuscula. The ground layer is tussock grasses, dominated by Dichanthium fecundum, Aristida latifolia and Heteropogon contortus. Isolated Eucalyptus microneura, E. chlorophylla or E. cullenii may occur. Occurs on undulating Cretaceous mudstone/siltstone plains. Yellow to brown cracking clay soils, commonly with gravel. Not a Wetland. (BVG1M: 27c). Vegetation communities in this regional ecosystem include: 2.9.3a: [RE not in use]²: This vegetation community has been amalgamated into 2.9.3. Terminalia spp., Lysiphyllum cunninghamii and Corymbia confertiflora deciduous low open woodland to low woodland. A sparse shrub layer may occur, including canopy species, Melaleuca viridiflora and Dendrolobium arbuscula. The ground layer is tussock grasses, dominated by Dichanthium fecundum, Aristida latifolia and Heteropogon contortus. Occurs on undulating Cretaceous mudstone/siltstone plains. Yellow to brown cracking clay soils, commonly with gravel. Not a Wetland. (BVG1M: 27c). 2.9.3x1a: [RE not in use]²: This vegetation community is now mapped as 2.9.2b. Mixed tussock grassland, including combinations of the species Aristida spp., Dichanthium spp., Heteropogon contortus, Themeda arguens, Iseilema spp., Bothriochloa sp. and Astrebla squarrosa. Emergent Terminalia spp., Lysiphyllum cunninghamii, Corymbia confertiflora, Eucalyptus chlorophylla and E. cullenii may occur. Occurs on undulating Cretaceous mudstone/siltstone plains. Not a Wetland. (BVG1M: 30b). 2.9.3x1b: [RE not in use]²: This vegetation community is now mapped as 2.9.2c. Ophiuros exaltatus closed tussock grassland. Occurs on low-lying Cretaceous mudstone/siltstone plains. Not a Wetland. (BVG1M: 30b). |
| Supplementary description | Galloway et. al. (1970): Maple (2) |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Burn less than 30% in any year. Buffer as indicated by fuel build-up in surrounding vegetation. ISSUES: Species in this vegetation unit may be eliminated by fire. Exclude fire, wherever possible. |
| Comments | 2.9.3: More information required to verify conservation status. Area has been subject to extensive pasture development. More information required to verify conservation status. Area has been subject to extensive pasture development. Subject to loss of ground cover due to high total grazing pressures. 2.9.3a: The introduced grass *Themeda quadrivalvis (grader grass) is dominant in the ground layer in parts. 2.9.3x1a: Subject to degradation from high total grazing pressure. Commonly invaded by *Themeda quadrivalvis (grader grass). 2.9.3x1b: A rare vegetation community. Commonly invaded by *Themeda quadrivalvis (grader grass). |
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.
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.
