Study area 2021/pre-clear wetland extent percentages

based on a comparison of 2021 and pre-clear wetland mapping

2021/pre-clear wetland extent percentage by study area
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Study area	Wetland extent percentage 2021/pre-clear by system					Total percentage
	intertidal (saltmarsh, saltflats, mangroves) (natural)	lacustrine (natural)	lacustrine (unknown degree of modification)	palustrine (natural)	riverine
All	93.8%	100.0%	-	61.3%	57.3%	68.7%
Cairns Urban	83.1%	-	-	24.2%	24.0%	59.6%
Great Sandy Strait	98.8%	100.0%	-	70.1%	60.0%	74.0%
Pumicestone Passage	90.1%	100.0%	-	48.2%	67.9%	55.8%

Disclaimer

All figures exclude artificial and highly modified wetlands.

The total percentage figure includes slightly modified wetlands.

Figures do not include marine or estuarine waters but do include estuarine wetland vegetation
(e.g. mangroves and tidal flats).

All statistics are approximate and generated based on data transformed to a customised Albers equal-area projection, thus allowing wetland extent change for different regions of Queensland to be comparable.

Figures may change over time as mapping approaches improve.