Great Barrier Reef pre-clear wetland system extents

Definition of Great Barrier Reef

based on wetland mapping version 6.0

Pre-clear wetland system extent by Great Barrier Reef
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Great Barrier Reef	Total area (ha)	Wetland area by system				Total wetland area (ha)
		intertidal (saltmarsh, saltflats, mangroves) (natural)	lacustrine (natural)	palustrine (natural)	riverine
Total	136,168,416	1,386,139	58,333	1,147,838	2,359,647	4,951,958
Great Barrier Reef catchments, reef and islands	51,245,150	499,050	21,467	393,135	787,125	1,700,776
Paddock to Reef (P2R) report cards	42,291,163	430,987	18,427	376,036	785,915	1,611,365
Water Quality Improvement Plans	42,632,103	456,102	18,440	378,668	786,607	1,639,816

Note that these totals may be lower than the Queensland totals due to incomplete coverage of Great Barrier Reef.

Disclaimer

Areas 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.

Areas may change over time as mapping approaches improve.

Totals may not match the sum of individually displayed figures due to the rounding of displayed figures.