Regional ecosystem details for 2.5.33
| Regional ecosystem | 2.5.33 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 7, 10, (1), (1.4), (8), (1.3), (2) |
| Estimated extent1 | Pre-clearing 714000 ha; Remnant 2021 713000 ha |
| Short description | Melaleuca spp. +/- Eucalyptus pruinosa, Asteromyrtus symphyocarpa, Terminalia canescens low open woodland on sand sheets in the west |
| Structure code | Low Woodland |
| Description | Melaleuca spp. low open woodland to low woodland, occasionally with Eucalyptus pruinosa, Asteromyrtus symphyocarpa and Terminalia canescens. Emergent Corymbia spp., Eucalyptus spp. and M. stenostachya may occur. A variable shrub layer may occur. The ground layer includes Chrysopogon fallax, Heterachne gulliveri and Triodia pungens. Occurs on sand sheets, outwash plains and sandy old alluvial surfaces in the west of the bioregion. Yellow to brown sandy loams. Not a Wetland. (BVG1M: 21b). Vegetation communities in this regional ecosystem include: 2.5.33a: Melaleuca citrolens low woodland, commonly with M. viridiflora, Asteromyrtus symphyocarpa, Terminalia canescens, Hakea arborescens and Cochlospermum gregorii. Emergent Eucalyptus pruinosa, M. stenostachya and E. tectifica may occur. A variable shrub layer commonly occurs, including canopy species, Acacia spp. and Petalostigma banksii. The ground layer is tussock grasses, including Chrysopogon fallax, Heterachne gulliveri and Eriachne spp. Occurs on level sand sheets on broad Tertiary lateritic surfaces. Yellow to brown sandy loams. Not a Wetland. (BVG1M: 21b). 2.5.33b: Melaleuca viridiflora low open woodland to low woodland, occasionally with M. citrolens, M. stenostachya, Erythrophleum chlorostachys, Asteromyrtus symphyocarpa and Terminalia canescens. Emergent Corymbia polycarpa and C. grandifolia commonly occur. A sparse shrub layer commonly occurs, including M. viridiflora, Acacia spp. and Petalostigma banksii. The ground layer is tussock grasses, including Chrysopogon fallax, Heterachne gulliveri and Thaumastochloa brassii. Occurs on level sand sheets on broad Tertiary lateritic surfaces. Yellow to brown sandy loams to texture contrast soils. Not a Wetland. (BVG1M: 21a). 2.5.33c: Melaleuca citrolens and/or Eucalyptus pruinosa and/or M. viridiflora low open woodland, occasionally with E. tectifica, M. stenostachya and Cochlospermum gregorii. A shrub layer commonly occurs, including canopy species and Carissa lanceolata. The ground layer is tussock grasses and Triodia pungens. Occurs on level, old alluvial plains (early Pleistocene surface) between Tertiary lateritic surfaces and active alluvial systems. Yellow-brown silty loam soils. Not a Wetland. (BVG1M: 21b). 2.5.33d: Melaleuca viridiflora and/or M. citrolens low open woodland to low woodland. A sparse shrub layer may occur, including Acacia spp. and Carissa lanceolata. The ground layer includes Schizachyrium fragile, Triodia pungens and Aristida spp. Occurs on Tertiary outwash plains and sand sheets around the margins of dissected lateritic surfaces and the Northwest Highlands bioregion. Yellow to brown loams and texture contrast soils. Not a Wetland. (BVG1M: 21a). |
| Protected areas | Lawn Hill (Widdallion) RR |
| Fire management guidelines | SEASON: Commence soon after wet season when just dry enough to carry fire. Occasional storm burns; high intensity fires caused by lightning are a feature of this system. INTENSITY: Low to moderate. INTERVAL: 1-3 years or longer, 3-5 years in the south (i.e., latitudes below Karumba) and in riparian areas. INTERVAL_MIN: 1. INTERVAL_MAX: 5. STRATEGY: Maintain a landscape mosaic of time since fire to break up fuel continuity through the landscape and to avoid impact of late season wildfire. Ensure good soil moisture. ISSUES: Repeat early season burns where there are overabundant seedlings and saplings is not recommended. Spinifex is highly flammable. Green spinifex will also burn readily. |
| Comments | 2.5.33a: Was previously mapped as 2.5.13x1a. 2.5.33b: Was previously mapped as 2.5.13x1b. 2.5.33c: Was previously mapped as 2.5.13x1c. 2.5.33d: Was previously mapped as 2.5.13x1d. |
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.
