Regional ecosystem details for 6.5.10
| Regional ecosystem | 6.5.10 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 5, 8, 3, 2, (4), (1), (6), (4.4), (7) |
| Estimated extent1 | Pre-clearing 510000 ha; Remnant 2021 330000 ha |
| Short description | Acacia aneura +/- Eucalyptus populnea, Grevillea striata, A. excelsa low woodland on sand plains in the east |
| Structure code | Low Woodland |
| Description | Acacia aneura low woodland, commonly with A. excelsa and Grevillea striata. Emergent Eucalyptus populnea or C. clarksoniana may occur. Scattered shrubs may be present, but rarely form a conspicuous layer. Frequent species include Eremophila longifolia, E. gilesii, Dodonaea viscosa subsp. angustissima, and Senna spp. The ground layer is open to dense. In higher tree density areas, the perennial grass Thyridolepis mitchelliana and Digitaria breviglumis are dominant, and the fern Cheilanthes sieberi abundant. In more open communities, Aristida calycina var. praealta, A. jerichoensis and Eragrostis lacunaria are dominant. Occurs on the flat to gently undulating sandplains in the east of the bioregion. Soils are generally deep, acid, sandy red earths, and minor areas of earthy sands. Not a Wetland. (BVG1M: 23a). |
| Supplementary description | Mills and Lee (1990), S1 (LU 45), and S2 (LU 47); Neldner (1984), 38b, 38d (93) |
| Protected areas | Thrushton NP, Culgoa Floodplain 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. ISSUES: Acacia aneura may be killed by high intensity fire. There is rarely enough fuel load to burn in these ecosystems. |
| Comments | 6.5.10: East of the Warrego River floodplain, from Charleville to south of Cunnamulla. Some areas severely degraded, showing highly modified ground layer species composition associated with topsoil loss (Mills and Lee, 1990; LU 45). A dense Acacia aneura low tree layer develops in areas that have been previously cleared, thinned or severely disturbed by grazing. |
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.
