Regional ecosystem details for 11.12.6
| Regional ecosystem | 11.12.6 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 12, 22, 18, 14, 2, (27), (17), (12.10), (12.6), (19), (8.3), (6) |
| Estimated extent1 | Pre-clearing 230000 ha; Remnant 2021 153000 ha |
| Short description | Corymbia citriodora open forest on igneous rocks (granite) |
| Structure code | Open Forest |
| Description | Corymbia citriodora, Eucalyptus crebra, E. microcarpa/E. moluccana, Angophora leiocarpa and E. melanophloia open forest to woodland. Other tree species that may be present include E. tereticornis +/- C. tessellaris +/- C. clarksoniana and E. fibrosa. Can include areas of E. suffulgens in the east of the bioregion. There is generally a sparse to moderately dense mid layer dominated by species such as Alphitonia excelsa, Petalostigma pubescens, Acacia spp. and occasionally Callitris glaucophylla or E. exserta. Occurs on gently undulating lower slopes of hills formed from Mesozoic to Proterozoic igneous rocks (granite). Associated soils are often deep texture contrast with thin sandy or loamy surface horizon over acid mottled subsoil's to shallow sandy or loamy skeletal soils. May include areas that occur on deeply weathered granite (land zone 5 or 7). Not a Wetland. (BVG1M: 10a). Vegetation communities in this regional ecosystem include: 11.12.6a: Eucalyptus crebra +/- Corymbia citriodora and/or E. acmenoides +/- Lophostemon suaveolens woodland to open forest. Occurs on gently undulating lower slopes of hills formed from Mesozoic to Proterozoic igneous rocks (granite). Associated soils are often deep texture contrast with thin sandy or loamy surface horizon over acid mottled subsoil's to shallow sandy or loamy skeletal soils. May include areas that occur on deeply weathered granite (land zone 5 or 7). Not a Wetland. (BVG1M: 10a). 11.12.6b: Callitris glaucophylla +/- Eucalyptus spp. woodland. Occurs on acid-volcanic and granitic hills on often shallow soils. Not a Wetland. (BVG1M: 20a). |
| Supplementary description | Taylor and Grimshaw (1994-95), Chinchilla MU9B; Gunn and Nix (1977), LU 32, 33 |
| Protected areas | Homevale NP, Beeron NP, Mount Archer NP, Flat Top Range RR, Eungella NP, Crediton FR, MacKenzie Island CP, Auburn River NP, Bukkulla CP, Kroombit Tops NP, Cania Gorge NP |
| Special values | 11.12.6: Potential habitat for NCA listed species: Acacia tingoorensis, Callicarpa thozetii, Capparis humistrata, Cycas megacarpa, Cycas ophiolitica, Zieria actites. |
| Fire management guidelines | SEASON: Late wet to early dry season when there is good soil moisture. Early storm season or after good spring rains. INTENSITY: Various. INTERVAL: 6-15 years. INTERVAL_MIN: 6. INTERVAL_MAX: 15. STRATEGY: Burn less than 30% in any year. Burn under conditions of good soil moisture and when plants are actively growing. All shrubby areas will carry fire after a good season. ISSUES: Management of this fire tolerant vegetation type should be based on maintaining vegetation composition, structural diversity, animal habitats and preventing extensive wildfire. Maintaining a fire mosaic will ensure protection of habitat and mitigate against wildfires. Requires a fire regime that maintains a diverse understorey. Planned burns have traditionally been carried out in the winter dry season; further research required. |
| Comments | 11.12.6: Occurs on lower slopes below RE 11.12.21. 11.12.6a: Mainly occurs mainly in subregions 14 and 18. |
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.
