Regional ecosystem details for 10.7.6
| Regional ecosystem | 10.7.6 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 1, 2, 4 |
| Estimated extent1 | Pre-clearing 7000 ha; Remnant 2021 6000 ha |
| Short description | Acacia aneura low woodland on laterite |
| Structure code | Low Woodland |
| Description | Acacia aneura low woodland. A variable shrub layer is usually present. The ground layer is dominated by Triodia pungens and/or tussock grasses. Occurs on flat to gently undulating terrain with shallow to usually skeletal soils mostly near the margins of lateritised plateaus. Not a Wetland. (BVG1M: 23b). Vegetation communities in this regional ecosystem include: 10.7.6x1: [RE not in use]²: This regional ecosystem is now mapped as 10.7.6. Acacia aneura dominates the very sparse tree layer. Triodia pungens dominates the very sparse ground layer. Occurs on undulating terrain with skeletal soil on silcrete. Not a Wetland. (BVG1M: 23b). 10.7.6x2: [RE not in use]²: This regional ecosystem is now mapped as 10.7.6. Acacia aneura dominates the very sparse tree layer. Dactyloctenium radulans dominates the sparse ground layer. Occurs on flat to gently undulating terrain with shallow to usually skeletal soils mostly near the margins of lateritised plateaus. Not a Wetland. (BVG1M: 23b). 10.7.6x3: [RE not in use]²: This regional ecosystem is now mapped as 10.7.6. Acacia aneura dominates the very sparse low tree layer. Occurs on flat to gently undulating terrain with shallow to usually skeletal soils mostly near the margins of lateritised plateaus. Not a Wetland. (BVG1M: 23b). |
| Special values | 10.7.6: Includes the only know occurrence of mulga Acacia aneura on the eastern side of the Great Dividing Range. |
| 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: 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. These communities generally have sparse ground layer. Will only burn following irregular high rainfall events. |
| Comments | 10.7.6: Occurs mostly along the western perimeter of the bioregion. Outliers occur at Moonoomoo and Kyong near Lake Buchanan. Threatening processes: inappropriate fire regimes which has led to increase woody biomass and cattle grazing. The soils are shallow with low water holding capacity, low fertility and high salinity. The nature of the soils and the very sparse ground cover of plants renders this ecosystem highly susceptible to erosion. Plant growth is seasonal and pasture productivity is low. There are few palatable species and their cover is very sparse. |
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.
