Regional ecosystem details for 3.3.17
| Regional ecosystem | 3.3.17 |
|---|---|
| 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 and Erythrophleum chlorostachys 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 open forest of Corymbia clarksoniana (Clarkson's bloodwood) +/- Erythrophleum chlorostachys (Cooktown ironwood) or C. intermedia (pink bloodwood). The sub-canopy is sparse to mid-dense as is the shrub layer. Occurs on alluvial plains. Not a Wetland. (BVG1M: 9e). Vegetation communities in this regional ecosystem include: 3.3.17a: [RE not in use]²: This vegetation community is now mapped as 3.3.20. Corymbia clarksoniana (Clarkson's bloodwood) dominates the sparse canopy (12-20m tall). Erythrophleum chlorostachys (Cooktown ironwood) is a frequent subdominant tree, with Canarium australianum (scrub turpentine), Eucalyptus brassiana (Cape York red gum) and Corymbia tessellaris (Moreton Bay ash) sometimes present. The sub-canopy (6-11m tall) is dominated by Melaleuca nervosa (paperbark), with a number of other species frequently present. The sparse shrub layer (0.5-2m tall) is composed of a variety of species, with Acacia crassicarpa (spoon tree), A. leptocarpa (a wattle) and Planchonia careya (cocky apple) the most frequent shrubs. The ground layer is sparse to mid-dense, with Mnesithea rottboellioides northern cane grass), Eriachne triseta (wanderrie grass) and Heteropogon triticeus (giant speargrass) the dominant grasses. Occurs on alluvial plains. Not a Wetland. (BVG1M: 9e). 3.3.17b: [RE not in use]²: This vegetation community is now mapped as 3.3.20. Corymbia clarksoniana (Clarkson's bloodwood) dominates the mid-dense canopy. C. intermedia (pink bloodwood) dominated at sites where C. clarksoniana was absent. C. tessellaris (Moreton Bay ash) is a consistent subdominant of the canopy. Acacia polystachya (wattle) is also frequently subdominant. The very sparse to mid-dense sub-canopy tree layer is dominated by Acacia flavescens (powder puff wattle), A. polystachya, A. crassicarpa (northern wattle) and Mallotus nesophilus. The shrub layer varies from very sparse to dense. Antidesma ghaesembilla (blackcurrant tree), Flueggea virosa subsp. melanthesoides (white currant) and Planchonia careya (cocky apple) are the most frequent dominant species. This layer may be dense in places and dominated by pioneer closed forest species. The ground layer varies from very sparse to dense. Common dominant species include Imperata cylindrica (blady grass), Panicum trichoides and Flemingia parviflora (flemingia). Occurs on coastal lowlands. Not a Wetland. (BVG1M: 9e). |
| 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 | 3.3.17: In the south-east of the bioregion and also on some Torres Strait Islands. 3.3.17a: In the south-east of the bioregion. 3.3.17b: East coast and Torres Strait islands. |
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.
