Regional ecosystem details for 4.7.7
| Regional ecosystem | 4.7.7 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 2, 1.3, 1.1, 3, (7), (1) |
| Estimated extent1 | Pre-clearing 52000 ha; Remnant 2021 52000 ha |
| Short description | Eucalyptus leucophylla +/- Corymbia terminalis +/- Triodia spp. low open woodland on scarps and margins of lateritic plateaus |
| Structure code | Low Open Woodland |
| Description | Eucalyptus leucophylla low open woodland, commonly with Corymbia terminalis and a ground layer dominated by Triodia spp. Occurs on scarp retreats and adjacent margins of dissected lateritic plateaus on a range of slopes (flat to vertical). Soils very shallow, acid, loamy lithosols with weathered with weathered rock exposed. Not a Wetland. (BVG1M: 19b). Vegetation communities in this regional ecosystem include: 4.7.7a: Mixed low open woodland, with combinations of the species Acacia aneura, Eucalyptus leucophylla, Corymbia terminalis, C. aparrerinja, Atalaya hemiglauca, Grevillea striata, Hakea chordophylla, E. leucophloia. A shrub layer of Acacia chisholmii and A. ancistrocarpa may occur. The ground layer is commonly dominated by Triodia spp. Occurs on low, Tertiary lateritic residuals. Surface lag gravel common. Shallow red earths. Not a Wetland. (BVG1M: 19b). 4.7.7b: Mixed low open woodland, with a combination of the species Eucalyptus leucophloia, Corymbia aparrerinja, C. terminalis, E. odontocarpa, Acacia aneura and E. pruinosa. Occasional canopy species include E. gamophylla and Hakea chordophylla. A variable shrub layer commonly occurs, including Acacia spp., Grevillea spp. and Eremophila spp. The ground layer is commonly dominated by Triodia spp. Occurs on rises and low hills of silcrete, derived from various deeply weathered sediments, including sandstones, conglomerates and shales. Not a Wetland. (BVG1M: 19b). 4.7.7c: [RE not in use]²: This vegetation community is now mapped as 4.7.7x1. Eucalyptus leucophylla +/- Corymbia terminalis low open woodland with a ground layer dominated by Triodia spp. Occurs on scarp retreats and adjacent tops of dissected tablelands on a range of slopes (flat to vertical). Soils very shallow, acid, loamy lithosols with weathered with weathered rock exposed. Not a Wetland. (BVG1M: 19b). 4.7.7x1: Corymbia terminalis and Eucalyptus leucophylla low open woodland. Triodia longiceps dominates the ground layer. Occurs on rises and breakaways of deeply weathered Cretaceous siltstones and mudstones. Not a Wetland. (BVG1M: 19b). 4.7.7x2: Corymbia aparrerinja low open woodland, occasionally with Atalaya hemiglauca, Acacia cyperophylla and Acacia cambagei. Scattered Senna spp. and Eremophila spp. shrubs commonly occur. The ground layer is patchy, with tussock grasses and Triodia pungens. Includes areas of bare rock and sparse shrubs and tussock grasses. Occurs on breakaways and low hills of lateritised Cretaceous mudstones. Not a Wetland. (BVG1M: 12b). |
| Supplementary description | Neldner (1991), 15a, 38a ( 50) |
| Fire management guidelines | SEASON: During the wet season to early dry season while soil retains moisture. INTENSITY: Low to moderate. Spinifex communities may naturally burn with a higher severity in some areas. INTERVAL: Broad fire interval range 10-15 years. INTERVAL_MIN: 10. INTERVAL_MAX: 15. STRATEGY: Apply mosaic across the landscape at a range of frequencies to create varying stages of post-fire response. Ensure some areas are left long unburnt (>15 years) but not so they promote wildfire. Mosaic 20-60% burn. ISSUES: Wet season burning can be undertaken as a series of small burns throughout the wet season. |
| Comments | 4.7.7b: Was previously mapped as 4.7. 4.7.7x1: 4.7.7c has been amalgamated into this RE. 4.7.7x2: Occurs in scattered locations on the western side of the Burke 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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use. It is included in the regional ecosystem description database because the RE code may appear in older versions of RE mapping and the Vegetation Management regulation.
