Regional ecosystem details for 10.4.5
| Regional ecosystem | 10.4.5 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Contains Palustrine |
| Biodiversity status | Of concern |
| Subregion | 1, 3, 2, (4), (4.4), (4.5), (11.26) |
| Estimated extent1 | Pre-clearing 109000 ha; Remnant 2021 53000 ha |
| Short description | Acacia cambagei woodland on Cainozoic clay plains |
| Structure code | Woodland |
| Description | Acacia cambagei woodland to open forest, occasionally with Acacia harpophylla, Acacia argyrodendron, Terminalia oblongata and Flindersia dissosperma. A second tree layer of Acacia cambagei, Lysiphyllum carronii and Eremophila mitchellii usually occurs. Mixed shrub layer including Acacia cambagei, Eremophila mitchellii and Carissa lanceolata. Sparse tussock grass ground layer. Occurs on Cainozoic clay plains. Cracking clay soils, usually with a weak gilgai microrelief and minor areas of texture contrast soils. Contains Palustrine. (BVG1M: 26a). Vegetation communities in this regional ecosystem include: 10.4.5a: [RE not in use]²: This vegetation community is now mapped as 10.4.5. Acacia cambagei dominates the small tree layer sometimes with A. harpophylla. Occurs on plains and gently undulating downs on Cainozoic lake deposits in sub-region 1. Contains Palustrine. (BVG1M: 26a). 10.4.5x1: [RE not in use]²: This regional ecosystem is now mapped as 10.4.5. Acacia cambagei or rarely Acacia crombiei woodland. Occurs on flat to gently undulating clay plain. Contains Palustrine. (BVG1M: 26a). 10.4.5x2: [RE not in use]²: This regional ecosystem is now mapped as 10.4.5. Acacia cambagei woodland with tussock grass ground layer. Occurs on sloping terrain with clay soil. Not a Wetland. (BVG1M: 26a). 10.4.5x3: Acacia tephrina woodland, commonly with Eucalyptus coolabah or Acacia cambagei. Tussock grass ground layer including Astrebla spp. Occurs on cracking clay soils. Contains Palustrine. (BVG1M: 26a). |
| Supplementary description | Gunn et al.(1967), My, Bl, Ct, I; Lorimer (1998), Ql2, Ql4; Thompson and Turpin (in prep), A13a |
| Protected areas | Moorrinya NP |
| Special values | 10.4.5: Larger gilgai may provide ephemeral wetland habitat. 10.4.5a: Larger gilgai may provide ephemeral wetland habitat. 10.4.5x1: Larger gilgai may provide ephemeral wetland habitat. |
| 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 | 10.4.5: Subject to clearing for pasture development. Moderate pasture degradation. There is potential for Parthenium invasion on the heavy clay soils. 10.4.5x3: Occurs in Subregion 1 on the edge of landzone 4 grasslands. |
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.
