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Regional ecosystem details for 11.4.10

Regional ecosystem 11.4.10
Vegetation Management Act class Endangered
Wetlands Not a Wetland
Biodiversity status Endangered
Subregion 33, 32, (30), (36), (27), (29), (31), (13.3)
Estimated extent1 Pre-clearing 64000 ha; Remnant 2021 7000 ha
Short description Eucalyptus populnea or E. woollsiana, Acacia harpophylla, Casuarina cristata open forest to woodland on margins of Cainozoic clay plains
Structure code Woodland
Description Eucalyptus populnea and/or E. woollsiana or sometimes E. moluccana (or the closely related E. microcarpa) open forest to woodland with an understorey of Acacia harpophylla or Casuarina cristata. Associated with the edges of Cainozoic clay plains, on the lower parts of the plain around its dissecting edges and on natural discharge areas where the clay plains meet higher landforms. Occurs on deep, texture contrast soils. Not a Wetland. (BVG1M: 25a).
Supplementary description Mullins (1980), Remeura
Protected areas Southwood NP, Bendidee NP
Special values 11.4.10: Potential habitat for NCA listed species: Xerothamnella herbacea.
Fire management guidelines SEASON: Various, avoiding hottest and driest time of the year. INTENSITY: Various. INTERVAL: 6-10 years. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: Burn less than 10% in any year. Burn in association with surrounding vegetation. Protection relies on broad-scale management of surrounding country with numerous small fires throughout the year so that wildfires will be very limited in extent. Fire exclusion is not necessary. ISSUES: Avoid fires at the hottest and/or driest time of the year, when the extent of fires cannot be controlled. Low intensity fires with good soil moisture will be useful in reducing fuel loads and fire spread in later fires. Moderate fires may assist in regeneration of hard-seeded spp. Brigalow is soft-seeded, so germination is not promoted by fire. Casuarina cristata is fire sensitive, although germination can be good in bare areas. Best protection from wildfires is probably the creation of a multi-aged mosaic and perimeter burning. Fire increases risk from invasion by buffel grass. These REs often make up shade lines in paddocks and are heavily grazed.
Comments 11.4.10: This regional ecosystem occurs on the lower parts of the clay plain around its dissecting edges and on natural discharge areas where the clay plains meet higher landforms (such as land zone 7 and 5). Restricted to southern part of bioregion. Extensively cleared for cropping and pasture.

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.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024