Regional ecosystem details for 3.3.22
| Regional ecosystem | 3.3.22 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Extent in reserves | This regional ecosystem is now mapped as 3.3.20. |
| Short description | Corymbia clarksoniana or C. novoguinensis woodland on alluvial plains |
| Structure code | Woodland |
| Description | [RE not in use]²: This regional ecosystem is now mapped as 3.3.20. Woodland to low open forest of Corymbia clarksoniana (Clarkson's bloodwood) or C. intermedia (pink bloodwood) or C. novoguinensis. A sparse sub-canopy is often present as is a sparse shrub layer. Widely distributed on alluvial plains and in drainage depressions. Not a Wetland. (BVG1M: 9e). Vegetation communities in this regional ecosystem include: 3.3.22a: [RE not in use]²: This vegetation community is now mapped as 3.3.20. Corymbia clarksoniana (Clarkson's bloodwood) dominates the sparse canopy (8-25m tall). In the northern areas, this species is replaced by another bloodwood, C. novoguinensis. Lophostemon suaveolens (swamp mahogany), Parinari nonda (nonda) and less frequently Erythrophleum chlorostachys (Cooktown ironwood) are subdominant trees. The sparse sub-canopy (4-18m tall) is most frequently dominated by Melaleuca viridiflora (broad-leaved teatree). Livistona muelleri (dwarf fan palm) and Alphitonia pomaderroides (soapwood) are also common components of this layer. Antidesma ghaesembilla (black currant) and Flueggea virosa subsp. melanthesoides (white currant) are characteristic species of the sparse shrub layer (0.5-2m tall). The ground layer is sparse to dense and dominated by Fimbristylis spp., Heteropogon triticeus (giant speargrass), Aristida sp. (three-awned speargrass) and Ischaemum spp. Widely distributed on alluvial and erosional plains and in drainage depressions. Not a Wetland. (BVG1M: 9e). 3.3.22b: [RE not in use]²: This vegetation community is now mapped as 3.3.20. Corymbia intermedia (pink bloodwood) is the most frequent dominant in the sparse to mid-dense canopy. C. novoguinensis (a bloodwood) or C. clarksoniana (Clarkson's bloodwood) may replace C. intermedia in some areas, although the positive identification of these closely related species is often difficult. Acacia crassicarpa (spoon tree) is a fairly consistent subdominant canopy species, and a number of other species may be present in this layer. The sparse sub-canopy layer is dominated by a range of species with Acacia crassicarpa, Dodonaea polyandra (hop bush) and Neofabricia myrtifolia (yellow teatree) the most frequent dominants. The generally mid-dense to dense shrub layer is dominated by a number of species, with Exocarpos latifolius (broad-leaved cherry), Dodonaea polyandra, Styphelia ruscifolia, Neoroepera banksii and Lomandra banksii the most frequent. The ground layer is very sparse to sparse, with Arthrostylis aphylla, Lomandra spp., Dianella pavopennacea and Eriachne pallescens the dominant species. Occurs in wet coastal areas usually on the inland side of dunefields. Not a Wetland. (BVG1M: 9e). |
| Special values | 3.3.22: Potential habitat for NCA listed species: Gardenia psidioides, Habenaria euryloba, Spathoglottis plicata. |
| Fire management guidelines | SEASON: Commence planned burns early in the dry season, after the wet season when dry enough to burn. Use occasional storm burns but generally avoid periods of extremely hot, dry conditions. INTENSITY: Low to moderate with occasional high during storm burns. INTERVAL: 1-3 years. INTERVAL_MIN: 1. INTERVAL_MAX: 3. STRATEGY: Apply a mosaic across the landscape at a range of intervals to create varying stages of post-fire response. Burn 30-60% at the property level. ISSUES: To mitigate against the impact of late dry season fires, commence burning early in the season and continue through the dry to break up continuity of fuels across the landscape. These communities require particular management attention due to issues of grazing, weed invasion, rapid fuel accumulation, poor access and woody thickening. Fuel can reach maximum accumulation in 2 years. |
| Comments | 3.3.22: Throughout the bioregion. 3.3.22a: Holroyd Plain, Weipa Plateau, Olive-Pascoe Lowlands and Torres Strait. 3.3.22b: Soils are alluvial sediments but are generally very sandy. South east of the bioregion. |
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.
