Regional ecosystem details for 5.3.12
| Regional ecosystem | 5.3.12 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Palustrine |
| Biodiversity status | No concern at present |
| Subregion | 5, 3, 9, 2, (8), (6), (4), (1), (10), (4.2), (4.1), (12), (11), (6.10), (6.9), (7) |
| Estimated extent1 | Pre-clearing 503000 ha; Remnant 2021 503000 ha |
| Short description | Chenopodium auricomum +/- Duma florulenta open shrubland in depressions on flood plains, interdune flats, clay pans and clay plains |
| Structure code | Open Shrubland |
| Description | Chenopodium auricomum open shrubland commonly with Duma florulenta, occasional scattered Eucalyptus coolabah low trees, Eremophila bignoniiflora tall shrubs and Acacia stenophylla shrubs may be present. The ground layer composition and density varies in response to incidence of flooding and may be dominated by perennial grasses, sedges and/or ephemeral forbs. Occurs in intermittently inundated depressions on alluvial plains, interdune flats, clay pans and clay plains. Soils very deep, grey cracking clays of light to medium texture, and contain varying amounts of silt and sand. Palustrine. (BVG1M: 34g). Vegetation communities in this regional ecosystem include: 5.3.12a: Chenopodium auricomum open shrubland commonly with Duma florulenta and occasional scattered Eucalyptus coolabah low trees, Eremophila bignoniiflora tall shrubs and Acacia stenophylla shrubs. The ground layer composition and density varies in response to incidence of flooding with Eleocharis pallens and/or Eragrostis setifolia commonly dominant. Sporobolus mitchellii is commonly dominant in channels where they occur. Occurs in intermittently inundated depressions on alluvial plains. Soils very deep, grey cracking clays of light to medium texture, and contain varying amounts of silt and sand. Palustrine. (BVG1M: 34g). 5.3.12b: Chenopodium auricomum open shrubland commonly with Duma florulenta and occasional Eucalyptus coolabah low trees and Eremophila bignoniiflora tall shrubs. Occurs in intermittently inundated depressions on interdune flats, clay pans and clay plains. Soils very deep, grey cracking clays of light to medium texture, and contain varying amounts of silt and sand. Palustrine. (BVG1M: 34b). |
| Supplementary description | Neldner (1991), 35a (76); Boyland (1984), 19a, 19b; Wilson and Purdie (1990a), C1, C2, W2 (79) |
| Protected areas | Diamantina NP, Pullen Pullen SWR |
| Special values | 5.3.12: Important seasonal water bird habitat. 5.3.12a: Important seasonal water bird habitat. 5.3.12b: Important seasonal water bird habitat. |
| Fire management guidelines | SEASON: Various (wet season or winter). INTENSITY: Low - moderate. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Aim to exclude fire by fuel reduction in adjacent vegetation communities where possible. Undertake partial burns when necessary to reduce fuel loads and protect against severe wildfire. Burn with high soil moisture (i.e., after rain/storms) or in winter when fire is more easily controlled. ISSUES: Important waterbird breeding habitat. Burning by graziers is carried out to encourage grass growth (e.g., channel millet), impacting on waterbird breeding. |
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.
