Regional ecosystem details for 6.3.4
| Regional ecosystem | 6.3.4 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 10, 5, 8, 6, (7), (9), (11), (3), (1), (4), (2), (5.9), (5.5) |
| Estimated extent1 | Pre-clearing 749000 ha; Remnant 2021 668000 ha |
| Short description | Acacia cambagei +/- emergent Eucalyptus ochrophloia woodland on alluvial plains |
| Structure code | Woodland |
| Description | Acacia cambagei woodland. Emergent Eucalyptus ochrophloia trees may occur. A shrub layer may occur, including Eremophila mitchellii, E. glabra, Duma florulenta, Eremophila deserti and Chenopodium auricomum. The ground cover varies with seasonal conditions. Frequent species include Enteropogon acicularis, Eragrostis setifolia and Paspalidium jubiflorum. In more open areas the annuals Sporobolus caroli, S. actinocladus and Chloris pectinata become dominant. The forbs Atriplex spp. Sclerolaena spp. and Sida fibulifera may be seasonally abundant. Occurs on alluvial plains. Soils are predominantly very deep, alkaline, grey and brown clays of light to medium textures with silt and sand bands. Sometimes occurs on texture contrast soils. Not a Wetland. (BVG1M: 26a). |
| Supplementary description | Dawson (1974), W1, (LU 39, 40), W3 (LU 40), W6 (LU 34); Neldner (1984), 10; Mills and Lee (1990), W2 (LU 17) |
| Protected areas | Currawinya NP, Culgoa Floodplain NP, Narkoola NP, Binya NP |
| Special values | 6.3.4: High fauna diversity, particularly bird species. Highly valued for honey production. |
| Fire management guidelines | SEASON: Late wet/dry season when there is good soil moisture. Early storm season or after good spring rains. INTENSITY: Moderate to high. INTERVAL: 6-10 years. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: Burn less than 10-30% in any year. Burn surrounding vegetation under conditions of good soil moisture and when plants are actively growing throughout the year so that wildfires will be very limited in extent. Fire exclusion not necessary. ISSUES: Best protection from wildfires is probably the creation of a multi-aged mosaic in surrounding vegetation and perimeter burning. Planned burns have traditionally been carried out in the winter dry season; further research required. |
| Comments | 6.3.4: Naturalised species associated with this regional ecosystem include *Portulaca oleracea. Occurs mainly west of the Warrego River. Clearing and associated introduction of exotic pasture species is occurring in some areas. |
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.
