Regional ecosystem details for 2.5.10
| Regional ecosystem | 2.5.10 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 7, 1.4, (1.3), (10), (1), (2) |
| Estimated extent1 | Pre-clearing 95000 ha; Remnant 2021 95000 ha |
| Short description | Corymbia polycarpa, C. grandifolia, Eucalyptus tectifica, E. chlorophylla in mixed woodlands on sand sheets and old alluvial plains in the west |
| Structure code | Woodland |
| Description | Mixed woodland to open woodland, including combinations of the species Corymbia polycarpa, C. grandifolia, Eucalyptus tectifica, E. chlorophylla, Erythrophleum chlorostachys and Lysiphyllum cunninghamii. Other canopy species include Eucalyptus pruinosa, Corymbia spp. and Melaleuca stenostachya. A lower tree or shrub layer may occur, including Acacia spp., Melaleuca spp. and Petalostigma spp. The ground layer is tussock grasses, including Heteropogon contortus, Chrysopogon fallax, Sehima nervosum, Bothriochloa spp., Themeda triandra and Aristida spp. Occurs on Tertiary outwash plains and sand sheets and old alluvial plains (early Pleistocene surface) in the west of the bioregion. Deep yellow podzolic soils. Not a Wetland. (BVG1M: 19b). Vegetation communities in this regional ecosystem include: 2.5.10a: Corymbia polycarpa, Erythrophleum chlorostachys and Lysiphyllum cunninghamii woodland. Occasional canopy species include C. grandifolia, Eucalyptus pruinosa, Eucalyptus tectifica and C. curtipes. A secondary tree layer may occur, including Melaleuca spp. and Acacia torulosa. The ground layer is tussock grasses. Occurs on level, old alluvial plains (early Pleistocene surface) between Tertiary lateritic surfaces and active alluvial systems. Yellow-brown silty soils. Not a Wetland. (BVG1M: 18a). 2.5.10b: Mixed woodland to open woodland, including combinations of the species Corymbia grandifolia, Eucalyptus tectifica, Eucalyptus pruinosa and C. polycarpa. Occasional canopy species include Melaleuca stenostachya, Erythrophleum chlorostachys and Lysiphyllum cunninghamii. Sparse, variable secondary tree layer and shrub layers commonly occur. The ground layer is tussock grasses, including Sehima nervosum, Thaumastochloa spp., and Aristida spp. Occurs on level, Tertiary sand sheets, commonly overlying ferricrete surfaces. Brown sandy loam soils. Not a Wetland. (BVG1M: 18a). 2.5.10c: Mixed woodland to open woodland, including combinations of the species Eucalyptus chlorophylla, Corymbia polycarpa, C. grandifolia, Erythrophleum chlorostachys and Eucalyptus tectifica. Occasional canopy species include C. confertiflora, C. terminalis, Lysiphyllum cunninghamii and Eucalyptus pruinosa. A secondary tree layer commonly occurs, including Melaleuca spp. and Terminalia canescens. A variable shrub layer commonly occurs. The ground layer is tussock grasses, including Chrysopogon fallax and Eriachne spp. Occurs on Tertiary outwash plains and sand sheets around the margins of dissected lateritic landscapes and the Northwest Highlands bioregion. Yellow-brown to red earths and texture contrast soils. Not a Wetland. (BVG1M: 18a). |
| Supplementary description | Christian et al. (1954), Keighran |
| Protected areas | Lawn Hill (Widdallion) RR, Lawn Hill (Arthur Creek) RR |
| Fire management guidelines | SEASON: Commence burning early in dry season as soon as ground fuels can carry fire with fire extinguishing early evening. Continue to mid-dry season. INTENSITY: Low to moderate with occasional high intensity. INTERVAL: 1-5 years, but do not burn the same patches annually. Landscape mosaic should consist of patches with different times since burning. INTERVAL_MIN: 1. INTERVAL_MAX: 5. STRATEGY: Break up continuity of fuel across the landscape so that impact of late-season wildfire is minimised. Wildfire due to dry storms late in the dry season or in the early wet are natural occurrences, but they can burn over a wide area of the landscape with unwanted intensity and frequency. Use broad scale mosaic burning. ISSUES: Overabundant seedlings and saplings can lead to woody thickening if unchecked by fire. A long absence of fire or low intensity fire too early in the season may lead to overabundant seedlings and saplings. If ground fuels are sparse spell pastures prior to planned burns. Weeds such as buffel grass and rubbervine may be an issue for some tussock grass communities because weeds increase fuel loads leading to high intensity fires. |
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.
