Identifying the potential for ecological rehabilitation of landfills in Queensland: A spatial analysis

Figures & data

Table 1. Ecological data, ranking criteria and features used.

Data set	Attributes selected	References
Locally refined koala habitat area	Koala priority area: If yes = 2, If no data is available = 1	(DES 2021c)
Koala priority area	Koala priority area: If yes = 1	(DES 2021c)
Koala habitat restoration area	Koala priority area: If yes = 2 If no = 1	(DES 2021c)
Protected area natural refuges	Natural refuge area: If yes = 1	(MSES 2021)
Protected area	IUCN code: Ia,II,III, IV, V Ib = 2, NR, NA, NAS = 1	(QPWS 2022)
Wetland protected area	Aquatic conservation score: very high = 2, high = 1	(DES 2020)
State riparian corridor	Significance: If state = 2, regional = 1	(DES 2019)
Queensland state-wide corridor terrestrial centrelines	Significance: If state = 2, regional = 1	(DES 2019)
MSES-wildlife habitat-threatened species	MSES record: If core habitat for one or more species = 2, If no = 1	(MSES 2020b)
Remnant vegetation cover	Cover: If remnant = 1, no = 0	(DES 2021b)
MSES-fish habitat area	Management type: If A = 2, If B = 1	(MSES 2020a)
MSES-special least concern animal habitat	MSES record: If one or more species present = 1	(MSES 2020c)

Figure 1. Spatial distribution of landfills in different biogeographic regions in Queensland and percentage of the total number of remnant Regional Ecosystems (REs) in each biogeographic regions.

Figure 2. Species density of flora and fauna in different biogeographic regions in Queensland.

Table 2. Ecological features and percentage coverage of total landfill buffer area.

Labels	Area in km^2	Percentage
Corridor buffer	566.39	31
Remnant vegetation cover	565.10	31
Wildlife habitats for endangered species	241.44	13
Wildlife habitats for special – no concern species	138.28	8
Koala habitat restoration areas	103.53	6
Koala priority area	90.40	5
Protected area	54.09	3
Fish habitat area	12.91	0.7
Wetland protection area	10.45	0.6
Natural refuge protected area	6.63	0.4
The locally defined koala habitat area	0.85	0.1
Riparian corridor	0.36	0.02
Terrestrial corridor	0.05	0.003

Figure 3. Environmental scores of landfills and WildNet data in landfill buffers.

Figure 4. Total environmental scores and habitat scores for landfills in different biogeographic regions in Queensland.

Figure 5. Environmental score and habitat score for all landfills in South East Queensland.

DES. 2021c. South East Queensland Koala Conservation Strategy 2019-2024. Brisbane: Queensland Spatial Catalogue.

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MSES. 2021. Matters of State Environmental Significance - Protected Area - Nature Refuges - Queensland. Brisbane: Queensland Spatial Catalogue.

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QPWS. 2022. Protected Areas of Queensland. Brisbane: Queensland Spatial Catalogue.

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DES. 2020. Wetland Protection Area - GBR High Ecological Significance Wetland. Brisbane: Queensland Spatial Catalogue.

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DES. 2019. Queensland Land Use, edited by Queensland Government. Brisbane: Queensland Spatial Catalogue.

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MSES. 2020b. Matters of State Environmental Significance - Wildlife Habitat - Endangered or Vulnerable Wildlife. Brisbane: Queensland Spatial Catalogue.

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DES. 2021b. Remnant Vegetation Cover. Brisbane: Queensland Spatial Catalogue.

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MSES. 2020a. Matters of State Environmental Significance - Fish Habitat Area - A and B Areas - Queensland. Brisbane: Queensland Spatial Catalogue.

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MSES. 2020c. Matters of State Environmental Significance - Wildlife Habitat - Special Least Concern Animal. Brisbane: Queensland Spatial Catalogue.

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