Regional ecosystem details for 11.7.2
| Regional ecosystem | 11.7.2 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 29, 11, 5, 16, 26, 3, 6, (7), (15), (13), (14), (21), (27), (34), (9.4), (24), (22), (19), (18), (4), (17), (28), (20), (12.10), (31), (25), (10), (12), (9), (8), (32), (10.4), (6.2), (6.4), (4.4) |
| Estimated extent1 | Pre-clearing 549000 ha; Remnant 2021 358000 ha |
| Short description | Acacia spp. woodland on Cainozoic lateritic duricrust. Scarp retreat zone |
| Structure code | Woodland |
| Description | Monospecific stands of Acacia spp. forest/woodland on Cainozoic lateritic duricrusts. Acacia shirleyi and/or Acacia catenulata usually predominate the woodland to low woodland to low open forest tree canopy (7-12m high). Other Acacia spp. That commonly occur and occasionally dominate the tree layer include A. rhodoxylon, A. burrowii, A. sparsiflora, A. crassa and A. blakei. Emergent eucalypt species such as Eucalyptus thozetiana, E. crebra, E. decorticans and E. exserta may be present. A low shrub layer is sometimes present and dominated by species such as Acalypha eremorum, Croton phebalioides and Carissa ovata. The ground layer is extremely sparse and dominated by grasses such as Aristida caput-medusae, Paspalidium rarum, Urochloa foliosa. Forbs are usually rare although Sida sp. (Musselbrook M.B.Thomas+ MRS437) may be conspicuous. Occurs on scarps and adjacent tops and slopes of dissected tablelands, mesas and buttes formed from chemically altered sediments and duricrusts. The soils are shallow to very shallow lithosols with surface stone and boulders. The vegetation is often growing in pockets of shallow lithosol soil between bare rock. Not a Wetland. (BVG1M: 24a). |
| Supplementary description | Dawson (1972), 19, 23, 25; Galloway et al. (1974), LU22; Gunn et al. (1967), Tichbourne; Neldner (1984), 5a, 15d, 35; Speck et al. (1968), Duaringa; Story et al. (1967), Junee; Taylor and Grimshaw (1994-95), Goondiwindi MU8A, 19D, Dalby MU6B; Gunn and Nix |
| Protected areas | Taunton NP (S), Junee NP, Humboldt NP, Blackdown Tableland NP, Narrien Range NP, Goodedulla NP, Blackwood NP, Stones Country RR |
| Special values | 11.7.2: Habitat for threatened plant species including Acacia wardellii. |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Maintain fire management of surrounding country so that wildfires will be very limited in extent and do not penetrate Lancewood forests. ISSUES: Although fire promotes the germination of Lancewood seedlings, trees are killed by all but the lowest intensity fires. Lancewood trees require approximately 20 years before seedlings mature. Often the lack of grass layer inhibits fire spread into these forests, and they will regenerate after occasional wildfires. Damaged by repeated fires < 20 years. Manage surrounding woodlands so that wildfires do not burn large areas of Lancewood forest in a single event. Ensure no damage to Lancewood trees from fires; extra protection required to ensure no two fires penetrate Lancewood forests within 20 years. |
| Comments | 11.7.2: This regional ecosystem may include adjacent areas which extend onto adjacent plateaus and plains with deeper soils (land zone 5). Have been subject to clearing. |
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.
