Regional ecosystem details for 6.3.22
| Regional ecosystem | 6.3.22 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 5, 8, 7, 10, (11) |
| Estimated extent1 | Pre-clearing 20000 ha; Remnant 2021 19000 ha |
| Short description | Acacia victoriae +/- Eucalyptus spp. tall open shrubland on old levees |
| Structure code | Tall Open Shrubland |
| Description | Acacia victoriae tall open shrubland. Emergent trees include Eucalyptus populnea, Corymbia terminalis, Atalaya hemiglauca, Ventilago viminalis and Acacia excelsa. The ground layer varies seasonally, but is usually dominated by short grasses, including Enneapogon avenaceus, E. polyphyllus, Chloris pectinata and Sporobolus actinocladus. The perennial grasses Aristida spp., Bothriochloa ewartiana, Heteropogon contortus and Themeda triandra may occur. A variety of forbs may be seasonally prominent. Occurs on flat to gently undulating levees. Associated soils are very deep, brown alluvial sandy clay loams to sandy clay with hard setting surfaces. Not a Wetland. (BVG1M: 26a). Vegetation communities in this regional ecosystem include: 6.3.22x1: Eremophila sturtii and Senna artemisioides subsp. zygophylla tall shrubland, occasionally with Acacia tetragonophylla and Dodonaea viscosa. Emergent trees may occur, including Acacia cambagei, A. aneura, Corymbia terminalis and Grevillea striata. The ground layer is seasonally variable, including short tussock grasses and forbs. Occurs on sandy deposits on alluvial plains in the west of the bioregion. Red sandy loam soils. Not a Wetland. (BVG1M: 26a). |
| Supplementary description | Neldner (1984), 60; Mills and Lee (1990), D2 (LU22) |
| Protected areas | Binya NP, Currawinya NP |
| Fire management guidelines | SEASON: Various (wet season or winter). INTENSITY: Low to 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. Interval will depend on need for burning, seasonal conditions and grazing pressure. Not to be targeted for burning unless in need of protection. ISSUES: Some Acacias can be fire sensitive (A. shirleyi, A. aneura) and may be killed by high intensity fire. There is rarely enough fuel load to burn in these ecosystems. |
| Comments | 6.3.22: Warrego River. |
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.
