Regional ecosystem details for 9.8.9
| Regional ecosystem | 9.8.9 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 5, (6), (2), (2.9), (4) |
| Estimated extent1 | Pre-clearing 109000 ha; Remnant 2021 109000 ha |
| Short description | Eucalyptus orgadophila +/- Corymbia spp. open woodland on basalt plains and rocky basalt hills |
| Structure code | Open Woodland |
| Description | Open woodland to woodland of Eucalyptus orgadophila (mountain coolibah) +/- Corymbia dallachiana (Dallachy's gum) +/- E. crebra (narrow-leaved ironbark) +/- C. erythrophloia (red bloodwood) with occasional small patches of grassland. There is generally no mid layer although scattered juveniles of the canopy species may occur or in the wetter areas clumps of Melaleuca bracteata (black teatree) can occur. The ground layer is dense and grassy and dominated by Heteropogon contortus (black speargrass) and/or Themeda triandra (kangaroo grass). Occurs on basalt plains to gently undulating plains. Some areas may have basalt boulders to the surface. Soils are generally brown-black vertosols and brown ferrosols. Not a Wetland. (BVG1M: 11a). |
| Protected areas | Undara Volcanic NP, Blackbraes NP, Porcupine Gorge NP, Mount Rosey RR, Great Basalt Wall NP, Kinrara NP, Kennedy Road Gravel RR, Moonstone Hill RR, Rungulla NP |
| Fire management guidelines | SEASON: Early dry season and storm time. Timing of early dry season burns will vary depending on seasonal conditions; it may sometimes commence as early as March. INTENSITY: Low, with occasional moderate. INTERVAL: 2-5 year intervals with longer unburnt patches. Fuel loads tend to reach a maximum after 2-3 years. Ensure burn programs occur after big wet season as fuel loads will be higher than average. INTERVAL_MIN: 2. INTERVAL_MAX: 5. STRATEGY: Burn less than 40% across the landscape in any year. Burning through the early dry season will produce a network of burns that will contain later fires. Fires will only gain in intensity as the dry season progresses. Grass composition can be affected by timing and intensity of fire. Occasional moderate fire will help to reduce overabundant trees that could potentially suppress ground layer vegetation. ISSUES: Leave areas of long unburnt vegetation to maintain a diversity of habitat for wildlife. |
| Comments | 9.8.9: Occurs extensively on basalt plains through-out the central and southern bioregion. Vulnerable to invasion by the woody weed Vachellia farnesiana (mimosa) and the pasture species Cenchrus ciliaris (buffel 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.
