A data set containing vegetation extent polygons from the mapping of remnant vegetation in Western Australia.
Important Update
In October 2025 the area covered by the DWER Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2024 (DWER -141) was excised from the data.
The Department of Water and Environmental Regulation (DWER) has published Swan Coastal Plain and Perth-Peel native vegetation extent for the years 2000, 2005, 2010, 2015, 2020 and 2024.
The mapped area covers the Metropolitan and Peel Region Schemes, the Swan Coastal Plain bioregion as defined in the Interim Biogeographic Regionalisation of Australia V 7.1 (Commonwealth of Australia, 2025) and the Swan Coastal Plain vegetation complexes (DBCA-046) (Department of Parks and Wildlife, 2016).
The DWER data products expanded and updated similar Swan Coastal Plain products published by the Department of Primary Industries and Regional Development (DPIRD) in 2021. As a result, DPIRD has retired the following products:
• Swan Coastal Plain Remnant Vegetation 2000 (DPIRD-089)
• Swan Coastal Plain Remnant Vegetation 2005 (DPIRD-090)
• Swan Coastal Plain Remnant Vegetation 2010 (DPIRD-091)
• Swan Coastal Plain Remnant Vegetation 2015 (DPIRD-092)
• Swan Coastal Plain Remnant Vegetation 2020 (DPIRD-093)
• Data in the area covered by the DWER products was excised from Native Vegetation Extent (DPIRD-005).
The DWER native vegetation extent datasets for the Swan Coastal Plain, Metropolitan and Peel Region Scheme areas include:
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2000 (DWER -136)
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2005 (DWER -137)
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2010 (DWER -138)
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2015 (DWER -139)
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2020 (DWER -140)
• Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2024 (DWER -141)
History
This was originally compiled as part of the vegetation theme of the National Land and Water Resource Audit (NLWRA). The data for the intensive land-use zone (ILZ) in south-western Australia was originally derived from 1995 LandSat TM satellite imagery and has been corrected using digital aerial photography (orthophotos) acquired 1996 to 2020. The extensive land-use zone (ELZ) is presumed to carry vegetation cover except for the major irrigated areas at Kununurra and Carnarvon. These have been removed from extent mapping for the ELZ.
The dataset was progressively updated by the Department of Agriculture post-NLWRA with assistance the Department of Conservation and Land Management until 2020.
A one-off update was carried out in May 2023.
No further updates are planned.