Regional ecosystem details for 3.3.20
| Regional ecosystem | 3.3.20 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 8, 7, 6, 1, 2, (4), (5), (9), (3), (2.4), (7.9) |
| Estimated extent1 | Pre-clearing 449000 ha; Remnant 2021 446000 ha |
| Short description | Corymbia clarksoniana or C. novoguinensis woodland on alluvial plains |
| Structure code | Woodland |
| Description | Corymbia clarksoniana or C. novoguinensis woodland to open forest on alluvial plains. Occurs on a variety of alluvial plains derived from a range of geological substrates. Not a Wetland. (BVG1M: 9e). Vegetation communities in this regional ecosystem include: 3.3.20a: Corymbia clarksoniana woodland to open forest +/- Erythrophleum chlorostachys. The very sparse to sparse sub canopy often contains Melaleuca viridiflora and/or M. nervosa +/- Planchonia careya +/- E. chlorostachys. A sparse to mid-dense mixed shrub layer often contains juvenile canopy species +/- Antidesma ghaesembilla +/- Alphitonia pomaderroides. The sparse to dense grassy ground layer is often dominated by Heteropogon triticeus, Panicum spp. Sarga plumosum and Imperata cylindrica. Occurs on a variety of alluvial plains derived from a range of geological substrates. Not a Wetland. (BVG1M: 9e). 3.3.20b: Corymbia novoguinensis woodland to open forest +/-Lophostemon suaveolens. The very sparse to sparse subcanopy can contain Melaleuca viridiflora, Parinari nonda and Livistona muelleri, The very sparse shrub layer contains juvenile C. novoguinensis +/- a range of heath species. The mixed sparse grassy groundlayer often include Lomandra spp., Imperata cylindrica or Mnesithea rottboellioides. Occurs on floodplains. Not a Wetland. (BVG1M: 9e). 3.3.20c: [RE not in use]²: This vegetation community is now part of 3.3.20a. Corymbia clarksoniana (Clarkson's bloodwood) +/- Corymbia nesophila (Melville Island bloodwood) +/- Corymbia tessellaris (Moreton Bay ash) +/- Corymbia stockeri subsp. peninsularis +/- Welchiodendron longivalve (yellow box-penda) woodland and open forest (18-27m). The generally open shrub layer often contains W. longivalve +/- Planchonia careya (cocky apple), Melaleuca viridiflora (broad-leaved paperbark) and Acacia leptocarpa, with the endemic Cycas badensis also occurring in a lower shrub layer. Occurs on alluvial outwash plains. Not a Wetland. (BVG1M: 9e). |
| Protected areas | Rinyirru (Lakefield) NP (CYPAL), Oyala Thumotang NP (CYPAL), Cape Melville NP (CYPAL), Muundhi (Jack River) NP (CYPAL), KULLA (McIlwraith Range) NP (CYPAL), Olkola NP (CYPAL), Bromley (Ampulin) NP (CYPAL), Lama Lama NP (CYPAL), Apudthama NP (CYPAL), Annan |
| Special values | 3.3.20: Potential habitat for NCA listed species: Astonia australiensis, Dendrobium johannis, Globba marantina, Stylidium longissimum. |
| 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: 3-5 years. INTERVAL_MIN: 3. INTERVAL_MAX: 5. 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. Late fires and too frequent fire management in gallery forests may reduce development of fire sensitive non-eucalypt species and reduce numbers of large and medium sized trees. |
| Comments | 3.3.20: RE's 3.3.17, 3.3.18, 3.3.19, 3.3.21, 3.3.22, 3.3.23, 3.3.40, 3.3.43x1and vegetation community 3.5.22c and were all amalgamated into this RE. The vegetation communities in this RE are not mappable on the CYP mainland. Throughout the central and south-east bioregion and also in the Torres Strait islands. 3.3.20a: Widespread throughout the bioregion. 3.3.20b: Eucalyptus platyphylla dominates in some low-lying areas but such areas are very limited in extent. Scattered though the northern and central bioregion. 3.3.20c: Torres Strait. |
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.
