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Land use zones derived from HCAS v2.1 and IBRA 7 as used in the Land Chapter of the Australia State of the Environment 2021 report

Commonwealth Scientific and Industrial Research Organisation
Williams, Kristen
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/pkvs-0n46&rft.title=Land use zones derived from HCAS v2.1 and IBRA 7 as used in the Land Chapter of the Australia State of the Environment 2021 report&rft.identifier=https://doi.org/10.25919/pkvs-0n46&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=Three land use zones were spatially delineated for use in developing summary assessments in the Land Chapter of the Australia State of the Environment 2021 report. The boundaries of the land use zones are based on IBRA 7 regions and were clustered using regional averages of HCAS v2.1 habitat condition (base model 2001-18). \n\nThe following thresholds of regional HCAS v2.1 averages were used to group regions into one or other zone:\n1. Intensive land use zone (ILZ) is where the mean HCAS scores are ≤0.7. \n2. Extensive land use zone (ELZ) is where the mean HCAS scores are >0.7 and ≤0.8.\n3. Relatively Natural Zone (RNZ) is where the mean HCAS scores are >0.8.\n\nThe zones are shown as the inset map in Figure 6 of the Land chapter:\nWilliams KJ, Hunter B, Schmidt B, Woodward E and Cresswell I (2021) Australia State of the Environment 2021 - Land. Independent report to the Australian Government Minister for the Environment, Commonwealth of Australia. DOI: 10.26194/6EAM-6G50.\nLineage: The following lineage was used to develop the land use zones:\n1. Generate the HCAS v2.1 zonal average for each of the IBRA7 regions as a table\n2. Attach the zonal average to the IBRA7 regions dataset as an attribute\n3. Use the land use zones delineated for IBRA 6.1 subregions (unpublished data assumed developed by ERIN and Ian Cresswell and used in an earlier version of the State of the Environment Report) as a guide to where to set the average HCAS v2.1 threshold\n4. Determine HCAS v2.1 thresholds to apply and add an attribute to the dataset labelling and delineating the zone \nRelevant attributes: \n- LandUseZone: RNZ, ELZ, ILZ\n- LUZ_HCAS: HCAS v2.1 mean >0.8 and 0.7 and &rft.creator=Williams, Kristen &rft.date=2023&rft.edition=v1&rft.relation=https://doi.org/10.25919/n3c6-7w60&rft.coverage=westlimit=110.9815; southlimit=-44.4015; eastlimit=155.3901; northlimit=-9.2349; projection=WGS84&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO 2023.&rft_subject=Interim Bioregionalisation for Australia&rft_subject=IBRA&rft_subject=IBRA version 6.1&rft_subject=IBRA version 7.0&rft_subject=subregion&rft_subject=bioregion&rft_subject=habitat condition assessment system&rft_subject=HCAS&rft_subject=HCAS version 2.1&rft_subject=land use zones&rft_subject=intensive land use zone&rft_subject=extensive land use zone&rft_subject=relatively natural zone&rft_subject=ILZ&rft_subject=ELZ&rft_subject=RNZ&rft_subject=habitat condition&rft_subject=land degradation&rft_subject=ecosystem condition&rft_subject=Land use and environmental planning&rft_subject=Urban and regional planning&rft_subject=BUILT ENVIRONMENT AND DESIGN&rft_subject=Conservation and biodiversity&rft_subject=Environmental management&rft_subject=ENVIRONMENTAL SCIENCES&rft.type=dataset&rft.language=English Access the data
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Three land use zones were spatially delineated for use in developing summary assessments in the Land Chapter of the Australia State of the Environment 2021 report. The boundaries of the land use zones are based on IBRA 7 regions and were clustered using regional averages of HCAS v2.1 habitat condition (base model 2001-18). \n\nThe following thresholds of regional HCAS v2.1 averages were used to group regions into one or other zone:\n1. Intensive land use zone (ILZ) is where the mean HCAS scores are ≤0.7. \n2. Extensive land use zone (ELZ) is where the mean HCAS scores are >0.7 and ≤0.8.\n3. Relatively Natural Zone (RNZ) is where the mean HCAS scores are >0.8.\n\nThe zones are shown as the inset map in Figure 6 of the Land chapter:\nWilliams KJ, Hunter B, Schmidt B, Woodward E and Cresswell I (2021) Australia State of the Environment 2021 - Land. Independent report to the Australian Government Minister for the Environment, Commonwealth of Australia. DOI: 10.26194/6EAM-6G50.\nLineage: The following lineage was used to develop the land use zones:\n1. Generate the HCAS v2.1 zonal average for each of the IBRA7 regions as a table\n2. Attach the zonal average to the IBRA7 regions dataset as an attribute\n3. Use the land use zones delineated for IBRA 6.1 subregions (unpublished data assumed developed by ERIN and Ian Cresswell and used in an earlier version of the State of the Environment Report) as a guide to where to set the average HCAS v2.1 threshold\n4. Determine HCAS v2.1 thresholds to apply and add an attribute to the dataset labelling and delineating the zone \nRelevant attributes: \n- LandUseZone: RNZ, ELZ, ILZ\n- LUZ_HCAS: "HCAS v2.1 mean >0.8 and <=1.0" (RNZ), "HCAS v2.1 mean >0.7 and <=0.8" (ELZ), "HCAS v2.1 mean <=0.7" (ILZ)\n\nTwo versions of the dataset are provided in this collection (both are ESRI shapefiles in zip packages):\na) IBRA7_regions_HCAS_ILZ_3zones_dissolve.zip - just shows the three zones\nb) IBRA7_regions_HCAS_ILZ_3zones.zip - includes the IBRA7 attributes plus additional attributes as follows: \n--> "HCAS_ILZ" - an initial two-zone regionalisation into intensive/extensive that was discontinued. Attribute labels define the HCAS v2.1 average thresholds used \n--> "MIN" - the minimum HCAS v2.1 score in that bioregion\n--> "MAX" - the maximum HCAS v2.1 score in that bioregion\n--> "RANGE" - the range (maximum minus minimum) of HCAS v2.1 scores in that bioregion\n--> "MEAN" - the mean across HCAS v2.1 scores in that bioregion\n--> "STD" - the standard deviation across HCAS v2.1 scores in that bioregion\n--> "SUM" - the sum of all HCAS v2.1 scores in that bioregion\n--> "MEDIAN" - the median across HCAS v2.1 scores in that bioregion\n--> "PCT25" - the 25th percentile across HCAS v2.1 scores in that bioregion\n--> "PCT75" - the 75th percentile across HCAS v2.1 scores in that bioregion\n--> "LandUseZon" - the code for the land use zone for that bioregion of the three zones (ILZ, ELZ, RNZ) as classified in "LUZ_HCAS"\n--> "LUZ_HCAS" - the HCAS v2.1 average threshold and range used to group each bioregion into one of three land use zones (LUZ) as labelled in "LandUseZon" \n\nThe related links point to the source data used (except the IBRA6.1 ILZ map which is internal use only)

Available: 2023-06-30

Data time period: 2001-01-01 to 2018-12-31

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155.3901,-9.2349 155.3901,-44.4015 110.9815,-44.4015 110.9815,-9.2349 155.3901,-9.2349

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Subjects
Built Environment and Design | Conservation and Biodiversity | ELZ | Environmental Sciences | Environmental Management | HCAS | HCAS version 2.1 | IBRA | IBRA version 6.1 | IBRA version 7.0 | ILZ | Interim Bioregionalisation for Australia | Land Use and Environmental Planning | RNZ | Urban and Regional Planning | bioregion | ecosystem condition | extensive land use zone | habitat condition | habitat condition assessment system | intensive land use zone | land degradation | land use zones | relatively natural zone | subregion |

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