Regional ecosystem details for 10.3.25
| Regional ecosystem | 10.3.25 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Endangered |
| Extent in reserves | This regional ecosystem is now mapped as 10.5.7. |
| Short description | Eremophila mitchellii tall open shrubland on alluvial plains |
| Structure code | Low Open Woodland |
| Description | [RE not in use]²: This regional ecosystem is now mapped as 10.5.7. Eremophila mitchellii with or without Lysiphyllum carronii dominates the sparse shrub to small tree layer. Senna artemisioides sometimes forming a shrub stratum. Eremophila mitchellii dominates the very sparse canopy. Lysiphyllum carronii, Atalaya hemiglauca and Psydrax oleifolia are usually present in the canopy. Flindersia maculosa is commonly present in western areas. Carissa lanceolata often dominates the very sparse shrub layer. Sporobolus actinocladus is usually present and sometimes dominant in the very sparse ground layer. Occurs on flood plains with sandy clay to clay soil. Not a Wetland. (BVG1M: 27c). Vegetation communities in this regional ecosystem include: 10.3.25x1: [RE not in use]²: This regional ecosystem is now mapped as 10.5.7. Eremophila mitchellii and/or Lysiphyllum carronii dominate the very sparse tree layer with variable species composition very sparse ground layer.v. Occurs on flat to gently undulating terrain with clayey soil usually with some stone cover. Not a Wetland. (BVG1M: 27c). 10.3.25x2: [RE not in use]²: This regional ecosystem is now mapped as 10.5.7. Eremophila mitchellii defines the emergent or very sparse tree or shrub layer with scattered ground layer. Occurs on sloping terrain with sandy clay soil. Not a Wetland. (BVG1M: 27c). 10.3.25x5: [RE not in use]²: This regional ecosystem is now mapped as 10.5.7. Eremophila mitchellii defines the very sparse tree or shrub layer with very sparse to mid-dense ground layer. Occurs on flat terrain with sandy soil. Not a Wetland. (BVG1M: 27c). 10.3.25x9: [RE not in use]²: This regional ecosystem is now mapped as 10.5.7. Senna artemisioides dominates the sparse shrub layer. Chloris pectinata and Polymeria marginata dominate the ground layer. Occurs on clay on gently undulating plains on Cretaceous sediments. Not a Wetland. (BVG1M: 27c). |
| Supplementary description | Thompson and Turpin (in prep), M17 |
| Fire management guidelines | SEASON: Wet to mid-dry season. Avoid late dry (August -September) as intensity will be too high (August -September). INTENSITY: Low. INTERVAL: 6-10 years, but will depend on seasonal conditions and grazing pressure. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: These communities generally have sparse ground layer. Will only burn following irregular high rainfall events. Fire is not generally applied directly to acacia dominated communities, but to surrounding fire-adapted communities in order to create a landscape mosaic of burnt/unburnt areas to mitigate against wildfire. Ensure fires are patchy. ISSUES: Acacias are fire sensitive and may be killed by high intensity or too frequent fire. |
| Comments | 10.3.25: Subject to high total grazing pressure; >70% severely degraded; A horizon largely removed; surface sealing/scalding. Subject to widespread pasture degradation, and to clearing for pasture development. The surface soils are susceptible to compaction, sheet erosion and salting even with light stocking. The very sparse native pasture is mostly annuals and should be maintained to assist infiltration and minimise evaporation and soil compaction. Transpiration from the tree and shrub cover needs to be sustained to can keep the water table low and encourage surface moisture to infiltrate and leach salts below the root zone of the ground layer species. |
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.
