Regional ecosystem details for 9.3.19
| Regional ecosystem | 9.3.19 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 2, 5, 4 |
| Estimated extent1 | Pre-clearing 18000 ha; Remnant 2021 18000 ha |
| Short description | Eucalyptus coolabah and/or E. leptophleba woodland on alluvial plains |
| Structure code | Woodland |
| Description | Woodland to open woodland of Eucalyptus coolabah (coolibah) and/or E. leptophleba (Molloy red box). There is generally no mid layer and a grassy ground layer. Occurs on alluvial plains adjacent to major watercourses, on dark clay soils washed down from basalt areas. Not a Wetland. (BVG1M: 16c). Vegetation communities in this regional ecosystem include: 9.3.19a: Woodland to open woodland of Eucalyptus coolabah (coolibah) and/or E. leptophleba (Molloy red box) +/- Grevillea striata (beefwood) +/- Lysiphyllum hookeri (Queensland ebony) +/- Atalaya hemiglauca (whitewood) +/- Acacia tephrina (boree). There is no mid layer though scattered Eremophila spp. and Carissa lanceolata (currantbush) may occur. The grassy ground layer is often dominated by Bothriochloa spp. (bluegrasses) and Chloris spp. Occurs on alluvial plains adjacent to major watercourses, on dark clay soils washed down from basalt areas. Not a Wetland. (BVG1M: 16c). 9.3.19b: Open woodland to woodland of Eucalyptus coolabah (coolibah). The mid-layer is generally absent. The ground layer is grassy. Occurs on alluvial plains adjacent to major watercourses, on dark clay soils washed down from basalt areas. Not a Wetland. (BVG1M: 16c). |
| Protected areas | Dalrymple 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 | 9.3.19: Distinguished from 9.3.18 by not being a fringing woodland. Occurs in two distinct areas in the central and south east of the bioregion. Vulnerable to exotic weeds Cryptostegia grandiflora (rubber vine), Parkinsonia aculeata and Malvastrum americanum (spiked Malvastrum) and invasive pasture species Cenchrus ciliaris (buffel grass). 9.3.19a: Western flowing rivers. Concentrated around the upper Einasleigh River in the central bioregion. 9.3.19b: Eastern flowing rivers. Occurs adjacent to the Burdekin River north of Charters Towers in the south of the bioregion. Vulnerable to invasion by pasture species such as Cenchrus ciliaris and also weeds including Malvastrum americanum. |
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.
