Regional ecosystem details for 6.3.24
| Regional ecosystem | 6.3.24 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 5, 1, (3), (6), (2), (7), (10), (4), (11), (8) |
| Estimated extent1 | Pre-clearing 129000 ha; Remnant 2021 74000 ha |
| Short description | Eucalyptus coolabah and/or E. populnea +/- Acacia cambagei, A. aneura, Atalaya hemiglauca woodland on sand deposits on alluvial plains of major watercourses |
| Structure code | Woodland |
| Description | Eucalyptus coolabah and/or E. populnea woodland commonly with Acacia cambagei, A. aneura, A. excelsa, Atalaya hemiglauca and Flindersia maculosa. A shrub layer may occur, including canopy species and Acacia victoriae. The ground layer is variable, including tussock grasses and forbs. Grass species include Eragrostis setifolia, Dichanthium sericeum, Panicum decompositum, Dactyloctenium radulans and Iseilema spp. Occurs on shallow sand deposits (remnants of levees) on alluvial plains of major watercourses. Shallow siliceous sands, overlying cracking clays. Not a Wetland. (BVG1M: 16c). Vegetation communities in this regional ecosystem include: 6.3.24a: Seasonal swamps (wooded). Eucalyptus populnea woodland, occasionally with Acacia aneura, Hakea ivoryi, E. melanophloia and Callitris glaucophylla. A shrub layer may occur, including Acacia oswaldii, A. tetragonophylla, Eremophila spp. The ground layer is dominated by species such as Eragrostis microcarpa, Aristida calycina var. praealta, A. jerichoensis and Digitaria spp. In wetter areas Dichanthium sericeum, Eulalia aurea and Iseilema vaginiflorum may be locally prominent. A variety of forbs may be present or seasonally abundant. Frequent species include Calotis cuneata, Euphorbia drummondii, Haloragis aspera and Velleia glabrata. Occurs in closed depressions, which are infrequently flooded. Associated soils are predominantly moderately deep, red to grey, light textured sandy loam to sandy medium clays. Palustrine. (BVG1M: 17a). |
| Supplementary description | Galloway et al. (1974), LU 68, 71; Neldner (1984), 32b; Mills and Lee (1990), W5 (LU 11) |
| Protected areas | Currawinya NP, Binya NP, Narkoola NP |
| Fire management guidelines | SEASON: n/a. a: Late wet/dry season when there is good soil moisture. Early storm season or after good spring rains. INTENSITY: n/a. a: Various. INTERVAL: n/a. a: 3-5 years. INTERVAL_MIN: 3. INTERVAL_MAX: 100. STRATEGY: Manage surrounding country. a: Burn less than 30% in any year. Burn under conditions of good soil moisture and when plants are actively growing. ISSUES: This community does not need fire. Flood events drive recruitment. Hollow trees are critical habitat. High intensity and extensive fires will degrade vegetation structure and destroy animal habitats. Restrict extent and intensity of fires. a: Avoid fires at the hottest and/or driest time of the year, when the extent of fires cannot be controlled. Low intensity fires with good soil moisture will be useful in reducing fuel loads and fire spread in later fires. Moderate fires may assist in regeneration of hard-seeded spp. Brigalow is soft-seeded, so germination is not promoted by fire. Casuarina cristata is fire sensitive, although germination can be good in bare areas. Best protection from wildfires is probably the creation of a multi-aged mosaic and perimeter burning. Fire increases risk from invasion by buffel grass. These REs often make up shade lines in paddocks and are heavily grazed. |
| Comments | 6.3.24: This regional ecosystem has been extensively cleared and/or thinned throughout its range. 6.3.24a: The vegetation community 6.3.24a is locally referred to as 'box hollows'. |
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.
