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North East Coast drainage division

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Based on wetland mapping version 6.0

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North East Coast drainage division wetland area by system 2019
System Area (ha) % wetlands area % total area
Total 1,799,526 100.0% 4.0%
Total excluding riverine and artificial/highly modified riverine 1,081,616 60.1% 2.4%
Artificial and highly modified 196,709 10.9% 0.4%
Intertidal (saltmarsh, saltflats, mangroves) (natural) 437,588 24.3% 1.0%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 4,124 0.2% 0.0%
Lacustrine (natural) 21,601 1.2% 0.0%
Lacustrine (slightly modified) 21,089 1.2% 0.0%
Palustrine (natural) 334,385 18.6% 0.7%
Palustrine (slightly modified) 66,518 3.7% 0.1%
Riverine 717,512 39.9% 1.6%
Intertidal (saltmarsh, saltflats, mangroves) (highly modified) 28 0.0% 0.0%
Intertidal (saltmarsh, saltflats, mangroves) (natural) 437,588 24.3% 1.0%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 4,124 0.2% 0.0%
Lacustrine (artificial) 63,306 3.5% 0.1%
Lacustrine (highly modified) 125,303 7.0% 0.3%
Lacustrine (natural) 21,601 1.2% 0.0%
Lacustrine (slightly modified) 21,089 1.2% 0.0%
Palustrine (artificial) 1,795 0.1% 0.0%
Palustrine (highly modified) 5,878 0.3% 0.0%
Palustrine (natural) 334,385 18.6% 0.7%
Palustrine (slightly modified) 66,518 3.7% 0.1%
Riverine (artificial) 155 0.0% 0.0%
Riverine (highly modified) 243 0.0% 0.0%
Riverine (natural) 714,543 39.7% 1.6%
Riverine (slightly modified) 2,969 0.2% 0.0%
North East Coast drainage division wetland area by habitat 2019
Habitat Area (ha) % wetlands area % total area
Total 789,088 100.0% 1.8%
Mangroves - Casuarina 3,347 0.4% 0.0%
Mangroves - other 252,943 32.1% 0.6%
Salt marsh and salt flats 116,503 14.8% 0.3%
Arid and semi-arid saline lake 206 0.0% 0.0%
Arid and semi-arid floodplain lake 1,057 0.1% 0.0%
Arid and semi-arid other non-floodplain lake 0 0.0% 0.0%
Arid and semi-arid non-floodplain clay plan lake 0 0.0% 0.0%
Arid and semi-arid permanently inundated lake 5 0.0% 0.0%
Coastal and sub-coastal floodplain lake 7,608 1.0% 0.0%
Coastal and sub-coastal non-floodplain rock lake 156 0.0% 0.0%
Coastal and sub-coastal non-floodplain sand (window) lake 7,606 1.0% 0.0%
Coastal and sub-coastal non-floodplain sand (perched) lake 998 0.1% 0.0%
Coastal and sub-coastal non-floodplain soil lake 164 0.0% 0.0%
Arid and semi-arid saline swamp 2,415 0.3% 0.0%
Arid and semi-arid floodplain tree swamp 7,937 1.0% 0.0%
Arid and semi-arid floodplain shrub swamp 0 0.0% 0.0%
Arid and semi-arid floodplain grass, sedge and herb swamp 2,978 0.4% 0.0%
Arid and semi-arid non-floodplain tree swamp 16,846 2.1% 0.0%
Arid and semi-arid non-floodplain shrub swamp 0 0.0% 0.0%
Arid and semi-arid non-floodplain grass, sedge and herb swamp 19,940 2.5% 0.0%
Arid and semi-arid other non-floodplain swamp 258 0.0% 0.0%
Arid and semi-arid Great Artesian Basin fed spring swamp 28 0.0% 0.0%
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp 72,416 9.2% 0.2%
Coastal and sub-coastal non-floodplain wet heath swamp 12,623 1.6% 0.0%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 56,148 7.1% 0.1%
Coastal and sub-coastal other non-floodplain swamp 5,160 0.7% 0.0%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 94,916 12.0% 0.2%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 81,315 10.3% 0.2%
Coastal and sub-coastal floodplain wet heath swamp 15,351 1.9% 0.0%
Coastal and sub-coastal other floodplain swamp 33 0.0% 0.0%
Coastal and sub-coastal tree (palm) swamp 3,315 0.4% 0.0%
Unknown - Swamp - Arid and semi-arid 2,690 0.3% 0.0%
Unknown - Swamp - Coastal and sub-coastal 4,124 0.5% 0.0%
Mangroves - Casuarina (natural) 3,073 0.4% 0.0%
Mangroves - Casuarina (slightly modified) 274 0.0% 0.0%
Mangroves - other (natural) 252,525 32.0% 0.6%
Mangroves - other (slightly modified) 418 0.1% 0.0%
Salt marsh and salt flats (natural) 114,688 14.5% 0.3%
Salt marsh and salt flats (slightly modified) 1,815 0.2% 0.0%
Arid and semi-arid saline lake (natural) 206 0.0% 0.0%
Arid and semi-arid saline lake (slightly modified) 0 0.0% 0.0%
Arid and semi-arid floodplain lake (natural) 1,057 0.1% 0.0%
Arid and semi-arid floodplain lake (slightly modified) 0 0.0% 0.0%
Arid and semi-arid other non-floodplain lake (natural) 0 0.0% 0.0%
Arid and semi-arid non-floodplain clay plan lake (natural) 0 0.0% 0.0%
Arid and semi-arid permanently inundated lake (slightly modified) 5 0.0% 0.0%
Coastal and sub-coastal floodplain lake (natural) 6,883 0.9% 0.0%
Coastal and sub-coastal floodplain lake (slightly modified) 726 0.1% 0.0%
Coastal and sub-coastal non-floodplain rock lake (natural) 153 0.0% 0.0%
Coastal and sub-coastal non-floodplain rock lake (slightly modified) 4 0.0% 0.0%
Coastal and sub-coastal non-floodplain sand (window) lake (natural) 7,604 1.0% 0.0%
Coastal and sub-coastal non-floodplain sand (window) lake (slightly modified) 2 0.0% 0.0%
Coastal and sub-coastal non-floodplain sand (perched) lake (natural) 998 0.1% 0.0%
Coastal and sub-coastal non-floodplain soil lake (natural) 55 0.0% 0.0%
Coastal and sub-coastal non-floodplain soil lake (slightly modified) 109 0.0% 0.0%
Arid and semi-arid saline swamp (natural) 2,415 0.3% 0.0%
Arid and semi-arid saline swamp (slightly modified) 0 0.0% 0.0%
Arid and semi-arid floodplain tree swamp (natural) 7,137 0.9% 0.0%
Arid and semi-arid floodplain tree swamp (slightly modified) 800 0.1% 0.0%
Arid and semi-arid floodplain shrub swamp (natural) 0 0.0% 0.0%
Arid and semi-arid floodplain shrub swamp (slightly modified) 0 0.0% 0.0%
Arid and semi-arid floodplain grass, sedge and herb swamp (natural) 2,536 0.3% 0.0%
Arid and semi-arid floodplain grass, sedge and herb swamp (slightly modified) 442 0.1% 0.0%
Arid and semi-arid non-floodplain tree swamp (natural) 16,532 2.1% 0.0%
Arid and semi-arid non-floodplain tree swamp (slightly modified) 314 0.0% 0.0%
Arid and semi-arid non-floodplain shrub swamp (natural) 0 0.0% 0.0%
Arid and semi-arid non-floodplain shrub swamp (slightly modified) 0 0.0% 0.0%
Arid and semi-arid non-floodplain grass, sedge and herb swamp (natural) 19,713 2.5% 0.0%
Arid and semi-arid non-floodplain grass, sedge and herb swamp (slightly modified) 226 0.0% 0.0%
Arid and semi-arid other non-floodplain swamp (natural) 235 0.0% 0.0%
Arid and semi-arid other non-floodplain swamp (slightly modified) 23 0.0% 0.0%
Arid and semi-arid Great Artesian Basin fed spring swamp (natural) 20 0.0% 0.0%
Arid and semi-arid Great Artesian Basin fed spring swamp (slightly modified) 7 0.0% 0.0%
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp (natural) 71,572 9.1% 0.2%
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp (slightly modified) 844 0.1% 0.0%
Coastal and sub-coastal non-floodplain wet heath swamp (natural) 12,619 1.6% 0.0%
Coastal and sub-coastal non-floodplain wet heath swamp (slightly modified) 4 0.0% 0.0%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp (natural) 52,730 6.7% 0.1%
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp (slightly modified) 3,418 0.4% 0.0%
Coastal and sub-coastal other non-floodplain swamp (natural) 4,676 0.6% 0.0%
Coastal and sub-coastal other non-floodplain swamp (slightly modified) 484 0.1% 0.0%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp (natural) 84,447 10.7% 0.2%
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp (slightly modified) 10,469 1.3% 0.0%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp (natural) 33,341 4.2% 0.1%
Coastal and sub-coastal floodplain grass, sedge, and herb swamp (slightly modified) 47,974 6.1% 0.1%
Coastal and sub-coastal floodplain wet heath swamp (natural) 15,327 1.9% 0.0%
Coastal and sub-coastal floodplain wet heath swamp (slightly modified) 25 0.0% 0.0%
Coastal and sub-coastal other floodplain swamp (natural) 33 0.0% 0.0%
Coastal and sub-coastal other floodplain swamp (slightly modified) < 1 0.0% 0.0%
Coastal and sub-coastal tree (palm) swamp (natural) 3,308 0.4% 0.0%
Coastal and sub-coastal tree (palm) swamp (slightly modified) 7 0.0% 0.0%
Unknown - Swamp - Arid and semi-arid (natural) 2,668 0.3% 0.0%
Unknown - Swamp - Arid and semi-arid (slightly modified) 21 0.0% 0.0%
Unknown - Swamp - Coastal and sub-coastal (natural) 3,062 0.4% 0.0%
Unknown - Swamp - Coastal and sub-coastal (slightly modified) 1,062 0.1% 0.0%

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.

Wetland extent changes

North East Coast drainage division wetland extent change by system
System 2019 area
(ha)
2017 area
(ha)
2013 area
(ha)
2009 area
(ha)
2005 area
(ha)
2001 area
(ha)
pre-clear area
(ha)
2019/pre-clear
percentage
Total 1,799,526 1,800,032 1,797,955 1,793,320 1,789,492 1,783,142 1,887,914 * 84.9%
Artificial and highly modified 196,709 196,580 193,513 188,100 182,711 172,504 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (natural) 437,588 437,600 437,999 438,276 438,415 438,708 498,440 87.8%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 4,124 4,127 3,888 3,829 3,817 3,876 0 n/a
Lacustrine (natural) 21,601 21,601 21,601 21,601 21,601 21,602 22,225 97.2%
Lacustrine (slightly modified) 21,089 21,084 20,977 20,698 20,486 19,198 0 n/a
Palustrine (natural) 334,385 334,639 335,320 335,819 336,571 338,232 522,204 64.0%
Palustrine (slightly modified) 66,518 66,443 65,716 65,383 65,399 65,406 0 n/a
Riverine 717,512 717,958 718,940 719,614 720,491 723,617 845,046 84.9%
Intertidal (saltmarsh, saltflats, mangroves) (highly modified) 28 28 29 44 46 46 0 n/a
Intertidal (saltmarsh, saltflats, mangroves) (natural) 437,588 437,600 437,999 438,276 438,415 438,708 498,440 87.8%
Intertidal (saltmarsh, saltflats, mangroves) (slightly modified) 4,124 4,127 3,888 3,829 3,817 3,876 0 n/a
Lacustrine (artificial) 63,306 63,195 60,316 56,675 52,302 46,814 0 n/a
Lacustrine (highly modified) 125,303 125,196 124,394 122,460 121,526 116,447 0 n/a
Lacustrine (natural) 21,601 21,601 21,601 21,601 21,601 21,602 22,225 97.2%
Lacustrine (slightly modified) 21,089 21,084 20,977 20,698 20,486 19,198 0 n/a
Palustrine (artificial) 1,795 1,792 1,767 1,724 1,697 1,670 0 n/a
Palustrine (highly modified) 5,878 5,971 6,609 6,808 6,762 7,157 0 n/a
Palustrine (natural) 334,385 334,639 335,320 335,819 336,571 338,232 522,204 64.0%
Palustrine (slightly modified) 66,518 66,443 65,716 65,383 65,399 65,406 0 n/a
Riverine (artificial) 155 155 158 154 145 142 0 n/a
Riverine (highly modified) 243 243 241 236 234 228 0 n/a
Riverine (natural) 714,543 714,993 715,979 716,653 717,531 720,656 845,046 84.6%
Riverine (slightly modified) 2,969 2,966 2,961 2,961 2,961 2,961 0 n/a

* Total 2019/pre-clear percentage excludes artificial and highly modified

North East Coast drainage division wetland extent change by habitat
Habitat 2019 area
(ha)
2017 area
(ha)
2013 area
(ha)
2009 area
(ha)
2005 area
(ha)
2001 area
(ha)
Total 789,088 789,256 789,129 789,510 790,424 792,357
Mangroves - Casuarina 3,347 3,350 3,173 3,150 3,150 3,153
Mangroves - other 252,943 252,950 253,011 252,991 252,977 253,024
Salt marsh and salt flats 116,503 116,507 116,543 116,815 116,951 117,130
Arid and semi-arid saline lake 206 206 206 206 206 206
Arid and semi-arid floodplain lake 1,057 1,057 1,057 1,057 1,057 1,057
Arid and semi-arid other non-floodplain lake 0 0 0 0 0 0
Arid and semi-arid non-floodplain clay plan lake 0 0 0 0 0 0
Arid and semi-arid permanently inundated lake 5 0 0 0 0 0
Coastal and sub-coastal floodplain lake 7,608 7,609 7,611 7,598 7,598 7,598
Coastal and sub-coastal non-floodplain rock lake 156 156 156 156 156 156
Coastal and sub-coastal non-floodplain sand (window) lake 7,606 7,606 7,606 7,606 7,606 7,606
Coastal and sub-coastal non-floodplain sand (perched) lake 998 998 998 998 998 998
Coastal and sub-coastal non-floodplain soil lake 164 164 164 164 164 164
Arid and semi-arid saline swamp 2,415 2,415 2,428 2,428 2,463 2,482
Arid and semi-arid floodplain tree swamp 7,937 7,937 7,940 7,940 8,077 8,077
Arid and semi-arid floodplain shrub swamp 0 0 0 0 0 0
Arid and semi-arid floodplain grass, sedge and herb swamp 2,978 2,978 2,978 2,980 2,983 2,983
Arid and semi-arid non-floodplain tree swamp 16,846 16,852 16,854 16,855 16,858 16,872
Arid and semi-arid non-floodplain shrub swamp 0 0 0 0 0 0
Arid and semi-arid non-floodplain grass, sedge and herb swamp 19,940 19,940 19,928 19,928 19,928 19,928
Arid and semi-arid other non-floodplain swamp 258 258 260 260 260 260
Arid and semi-arid Great Artesian Basin fed spring swamp 28 28 28 28 28 28
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp 72,416 72,498 72,349 72,547 72,846 73,434
Coastal and sub-coastal non-floodplain wet heath swamp 12,623 12,659 12,661 12,675 12,715 12,471
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp 56,148 56,131 55,915 55,898 55,908 55,916
Coastal and sub-coastal other non-floodplain swamp 5,160 5,168 5,169 5,162 5,163 5,168
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp 94,916 94,924 95,147 95,116 95,327 96,348
Coastal and sub-coastal floodplain grass, sedge, and herb swamp 81,315 81,331 81,390 81,417 81,409 81,580
Coastal and sub-coastal floodplain wet heath swamp 15,351 15,366 15,387 15,403 15,470 15,568
Coastal and sub-coastal other floodplain swamp 33 33 33 33 30 30
Coastal and sub-coastal tree (palm) swamp 3,315 3,318 3,321 3,322 3,311 3,316
Unknown - Swamp - Arid and semi-arid 2,690 2,690 2,690 2,693 2,694 2,694
Unknown - Swamp - Coastal and sub-coastal 4,124 4,126 4,126 4,084 4,092 4,111
Mangroves - Casuarina (natural) 3,073 3,076 3,074 3,071 3,068 3,072
Mangroves - Casuarina (slightly modified) 274 274 100 79 81 81
Mangroves - other (natural) 252,525 252,530 252,628 252,629 252,615 252,659
Mangroves - other (slightly modified) 418 420 383 361 362 365
Salt marsh and salt flats (natural) 114,688 114,692 114,762 115,045 115,179 115,292
Salt marsh and salt flats (slightly modified) 1,815 1,816 1,781 1,770 1,772 1,838
Arid and semi-arid saline lake (natural) 206 206 206 206 206 206
Arid and semi-arid saline lake (slightly modified) 0 0 0 0 0 0
Arid and semi-arid floodplain lake (natural) 1,057 1,057 1,057 1,057 1,057 1,057
Arid and semi-arid floodplain lake (slightly modified) 0 0 0 0 0 0
Arid and semi-arid other non-floodplain lake (natural) 0 0 0 0 0 0
Arid and semi-arid non-floodplain clay plan lake (natural) 0 0 0 0 0 0
Arid and semi-arid permanently inundated lake (slightly modified) 5 0 0 0 0 0
Coastal and sub-coastal floodplain lake (natural) 6,883 6,883 6,883 6,883 6,883 6,884
Coastal and sub-coastal floodplain lake (slightly modified) 726 726 728 715 715 714
Coastal and sub-coastal non-floodplain rock lake (natural) 153 153 153 153 153 153
Coastal and sub-coastal non-floodplain rock lake (slightly modified) 4 4 4 4 4 4
Coastal and sub-coastal non-floodplain sand (window) lake (natural) 7,604 7,604 7,604 7,604 7,605 7,604
Coastal and sub-coastal non-floodplain sand (window) lake (slightly modified) 2 2 2 2 2 2
Coastal and sub-coastal non-floodplain sand (perched) lake (natural) 998 998 998 998 998 998
Coastal and sub-coastal non-floodplain soil lake (natural) 55 55 55 55 55 55
Coastal and sub-coastal non-floodplain soil lake (slightly modified) 109 109 109 109 109 109
Arid and semi-arid saline swamp (natural) 2,415 2,415 2,428 2,428 2,463 2,482
Arid and semi-arid saline swamp (slightly modified) 0 0 0 0 0 0
Arid and semi-arid floodplain tree swamp (natural) 7,137 7,137 7,140 7,140 7,140 7,149
Arid and semi-arid floodplain tree swamp (slightly modified) 800 800 800 800 937 927
Arid and semi-arid floodplain shrub swamp (natural) 0 0 0 0 0 0
Arid and semi-arid floodplain shrub swamp (slightly modified) 0 0 0 0 0 0
Arid and semi-arid floodplain grass, sedge and herb swamp (natural) 2,536 2,536 2,536 2,539 2,541 2,541
Arid and semi-arid floodplain grass, sedge and herb swamp (slightly modified) 442 442 442 442 442 442
Arid and semi-arid non-floodplain tree swamp (natural) 16,532 16,538 16,541 16,541 16,544 16,558
Arid and semi-arid non-floodplain tree swamp (slightly modified) 314 314 314 314 314 314
Arid and semi-arid non-floodplain shrub swamp (natural) 0 0 0 0 0 0
Arid and semi-arid non-floodplain shrub swamp (slightly modified) 0 0 0 0 0 0
Arid and semi-arid non-floodplain grass, sedge and herb swamp (natural) 19,713 19,713 19,701 19,701 19,701 19,701
Arid and semi-arid non-floodplain grass, sedge and herb swamp (slightly modified) 226 226 226 226 226 226
Arid and semi-arid other non-floodplain swamp (natural) 235 235 237 237 237 237
Arid and semi-arid other non-floodplain swamp (slightly modified) 23 23 23 23 23 23
Arid and semi-arid Great Artesian Basin fed spring swamp (natural) 20 20 20 20 20 20
Arid and semi-arid Great Artesian Basin fed spring swamp (slightly modified) 7 7 7 7 7 7
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp (natural) 71,572 71,654 71,772 71,966 72,268 72,858
Coastal and sub-coastal non-floodplain tree (Melaleuca and Eucalypt) swamp (slightly modified) 844 844 577 581 578 576
Coastal and sub-coastal non-floodplain wet heath swamp (natural) 12,619 12,655 12,657 12,671 12,711 12,467
Coastal and sub-coastal non-floodplain wet heath swamp (slightly modified) 4 4 4 4 4 4
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp (natural) 52,730 52,713 52,724 52,707 52,729 52,736
Coastal and sub-coastal non-floodplain grass, sedge, and herb swamp (slightly modified) 3,418 3,418 3,191 3,191 3,180 3,179
Coastal and sub-coastal other non-floodplain swamp (natural) 4,676 4,684 4,685 4,696 4,698 4,703
Coastal and sub-coastal other non-floodplain swamp (slightly modified) 484 484 484 465 465 465
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp (natural) 84,447 84,551 84,985 85,139 85,343 86,264
Coastal and sub-coastal floodplain tree (Melaleuca and Eucalypt) swamp (slightly modified) 10,469 10,373 10,163 9,977 9,985 10,084
Coastal and sub-coastal floodplain grass, sedge, and herb swamp (natural) 33,341 33,357 33,439 33,492 33,574 33,749
Coastal and sub-coastal floodplain grass, sedge, and herb swamp (slightly modified) 47,974 47,975 47,950 47,926 47,836 47,830
Coastal and sub-coastal floodplain wet heath swamp (natural) 15,327 15,342 15,363 15,378 15,446 15,543
Coastal and sub-coastal floodplain wet heath swamp (slightly modified) 25 25 25 25 25 25
Coastal and sub-coastal other floodplain swamp (natural) 33 33 33 33 29 30
Coastal and sub-coastal other floodplain swamp (slightly modified) < 1 < 1 < 1 < 1 < 1 0
Coastal and sub-coastal tree (palm) swamp (natural) 3,308 3,311 3,314 3,315 3,304 3,309
Coastal and sub-coastal tree (palm) swamp (slightly modified) 7 7 7 7 7 7
Unknown - Swamp - Arid and semi-arid (natural) 2,668 2,668 2,668 2,671 2,672 2,673
Unknown - Swamp - Arid and semi-arid (slightly modified) 21 21 21 21 21 21
Unknown - Swamp - Coastal and sub-coastal (natural) 3,062 3,064 3,064 3,129 3,137 3,191
Unknown - Swamp - Coastal and sub-coastal (slightly modified) 1,062 1,062 1,062 955 955 920

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.