Regional ecosystem details for 10.4.6
| Regional ecosystem | 10.4.6 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Endangered |
| Subregion | 3 |
| Estimated extent1 | Pre-clearing 1000 ha; Remnant 2021 1000 ha |
| Short description | Terminalia oblongata and Lysiphyllum carronii low open woodland on Cainozoic lake beds |
| Structure code | Low Open Woodland |
| Description | Terminalia oblongata and Lysiphyllum carronii dominate the very sparse low tree layer with grassy understorey or rarely wooded downs. Occurs on plains and undulating downs with black or grey cracking clay soils on Cainozoic lake beds. Not a Wetland. (BVG1M: 27c). Vegetation communities in this regional ecosystem include: 10.4.6a: [RE not in use]²: This vegetation community is now mapped as 10.4.6. Lysiphyllum carronii low open woodland with a mix of other species including: Acacia harpophylla, Corymbia erythrophloia, Flindersia maculosa, Terminalia oblongata and Ventilago viminalis. Tussock grass ground layer. Occurs on the margins of clay plains. Not a Wetland. (BVG1M: 27a). 10.4.6b: [RE not in use]²: This vegetation community is now mapped as 10.4.8. Dichanthium fecundum, Eulalia aurea and D. sericeum dominate a sparse to mid-dense ground layer. Aristida latifolia is present as a sub-dominant species. Lysiphyllum carronii is present as an emergent tree species and Carissa lanceolata and Scaevola spinescens are present as emergent shrubs. Occurs on Cainozoic lake beds. Not a Wetland. (BVG1M: 30b). |
| Supplementary description | Gunn et al. (1967), My; Thompson and Turpin (in prep), M12 |
| Fire management guidelines | SEASON: Wet to mid-dry season. Avoid late dry (August -September) as intensity will be too high (August -September). INTENSITY: Low. INTERVAL: 6-10 years, but will depend on seasonal conditions and grazing pressure. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: These communities generally have sparse ground layer. Will only burn following irregular high rainfall events. Fire is not generally applied directly to acacia dominated communities, but to surrounding fire-adapted communities in order to create a landscape mosaic of burnt/unburnt areas to mitigate against wildfire. Ensure fires are patchy. ISSUES: Acacias are fire sensitive and may be killed by high intensity or too frequent fire. |
| Comments | 10.4.6: Occurs in small patches within grasslands or vegetation communities dominated by Acacia spp. More information on current extent is required. This ecosystem is subject to clearing for pasture development especially where associated with Acacia communities. 10.4.6a: Naturalised species associated with this regional ecosystem include *Cenchrus ciliaris. 10.4.6b: Rare vegetation community known from one location near Corea Plains. |
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.
