Regional ecosystem details for 5.6.2
| Regional ecosystem | 5.6.2 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 10, 11, 2, (1), (6), (3), (4.1), (4), (5), (4.2), (6.10) |
| Estimated extent1 | Pre-clearing 744000 ha; Remnant 2021 744000 ha |
| Short description | Acacia georginae and/or Acacia cambagei low open woodland +/- Eremophila spp. on interdune areas and clay plains at interface with dune fields |
| Structure code | Low Open Woodland |
| Description | Acacia georginae and/or Acacia cambagei low open woodland. Low shrubs are common including Eremophila obovata, Eremophila macdonnellii and juvenile Acacia georginae and/or Acacia cambagei. The ground layer is seasonably variable, but usually dominated by Aristida holathera var. holathera, with Enteropogon acicularis and Eragrostis eriopoda being locally abundant. In places with deeper sand Triodia longiceps is often dominant. Tree height greatest in run-on areas. Occurs on interdune areas, at the interface of clay plains and dune fields, run-on areas, low sandy rises and on rounded dunes. Soils deep to very deep, sandy red earths, sandy-surfaced duplex soils, occasionally red earthy sands. Not a Wetland. (BVG1M: 26a). Vegetation communities in this regional ecosystem include: 5.6.2x1: Acacia ramulosa low open woodland. A lower shrub layer is well defined in places with Acacia ligulata common, but in other situations consists only of scattered shrubs. Ground cover is variable and composed of grasses and forbs +/- Triodia basedowii. Fire frequency can affect density of woody species and Triodia basedowii. Occurs on low dunes and sandplains of low relief associated with dunefields. Soils moderately deep red texture contrast soils with sandy loams overlying the sandy clays. Not a Wetland. (BVG1M: 33a). |
| Supplementary description | Neldner (1991), 29 (21); Boyland (1984), 15b; Wilson and Purdie (1990a), S2 (9, 10) |
| Protected areas | Munga-Thirri NP |
| Fire management guidelines | SEASON: Various (wet season or winter). INTENSITY: Low - moderate. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Aim to exclude fire by fuel reduction in adjacent vegetation communities where possible. Undertake partial burns when necessary to reduce fuel loads and protect against severe wildfire. Burn with high soil moisture (i.e., after rain/storms) or in winter. ISSUES: Where Triodia spp. present, partial burns to reduce cover and size of highly flammable spinifex clumps may be needed. Winter and/or wet/storm season burns can be used. Some Acacia spp. are fire sensitive (e.g., A. aneura, A. georginae, A. cambagei) and may be killed by high intensity fire. |
| Comments | 5.6.2: Mulligan River - Toko Range area. |
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.
