Regional ecosystem details for 1.3.5
| Regional ecosystem | 1.3.5 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Riverine |
| Biodiversity status | No concern at present |
| Subregion | 3, 4, 2, 2.7, (2.8), (2.2) |
| Estimated extent1 | Pre-clearing 39000 ha; Remnant 2021 39000 ha |
| Short description | Corymbia polycarpa, C. bella, C. grandifolia and Eucalyptus chlorophylla in mixed woodlands on sandy levees in the north |
| Structure code | Woodland |
| Description | Variable open woodland to open forest that may include Corymbia polycarpa, Eucalyptus leucophylla, C. bella and C. grandifolia over annual and perennial grasses. Associates include Lysiphyllum cunninghamii, Hakea arborescens, Eucalyptus pruinosa and Melaleuca viridiflora. Occurs on sandy levees associated with major watercourses in the north of the bioregion. Riverine. (BVG1M: 19b). Vegetation communities in this regional ecosystem include: 1.3.5x2: [RE not in use]²: This regional ecosystem is now mapped as 1.3.11. Eucalyptus chlorophylla low open woodland and low woodland often with Eucalyptus pruinosa and/or Lysiphyllum cunninghamii with a mixed shrub layer and a ground layer of tussock grasses, often with Triodia pungens. Occurs on alluvial terraces associated with major and minor watercourses. Not a Wetland. (BVG1M: 16c). 1.3.5x3: [RE not in use]²: This regional ecosystem is now mapped as 1.3.12. Terminalia bursarina open woodland, often with Corymbia grandifolia subsp. grandifolia and/or Eucalyptus pruinosa subsp. pruinosa over a dense ground layer of tussock grasses and/or Triodia pungens. Occurs on alluvial terraces associated with watercourses draining landscapes of Proterozoic siltstones. Not a Wetland. (BVG1M: 16c). 1.3.5x5: [RE not in use]²: This vegetation community is now mapped as 1.5.10a. Acacia hammondii and Melaleuca spp. shrubland with Petalostigma banksii, sometimes with emergent trees of Corymbia spp. and Melaleuca spp. and ground layer of Triodia bitextura and diverse forbs. Occurs on sandy alluvium in sandstone landscapes. Not a Wetland. (BVG1M: 16c). |
| Supplementary description | Christian et al. (1954), Mount Isa, Robinson |
| Protected areas | Boodjamulla (Lawn Hill) NP, Lawn Hill (Stockyard Creek) RR, Lawn Hill (Littles Range) RR, Lawn Hill (Gregory) RR, Lawn Hill (Widdallion) RR, Lawn Hill (Gregory River Base) RR, Lawn Hill (Lilydale) RR, Lawn Hill (Arthur Creek) RR |
| Fire management guidelines | SEASON: Storm season to very early dry season. INTENSITY: Low with occasional moderate. INTERVAL: 4 - 10 years. Adjust intervals/frequency according to rainfall-drought cycles, fuel accumulation and previous fire history. INTERVAL_MIN: 4. INTERVAL_MAX: 10. STRATEGY: Ensure burns are undertaken across the landscape at a range of frequencies to create a mosaic of times since fire. Apply numerous small burns every year to achieve a mosaic and reduce risks of wildfire across vast areas of the landscape. Maintain burnt areas < 20%. ISSUES: Too frequent fire can promote annual grasses over perennial. Ensure areas with obligate seeders are left so that seed regeneration cycles can be maintained. Mixed shrubby woodlands contain fire-sensitive species and tend to grow in fire-sheltered areas. |
| Comments | 1.3.5: These communities are often quite mixed and any combination of the species listed in sub-units can be present at a site. Occurs in the northern part of the bioregion. Areas of scalding due to high total grazing pressure. |
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.
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.
