Table 6.12

Table 6.12 U.S. Wetlands by Type, Mid-1950s to Mid-1990s

Wetlands type Mid-1950s Mid-1970s Mid-1980s Mid-1990s

million acres

Estuarine wetlands 5.74 5.53 5.20 5.19

Palustrine marshes 33.13 28.44 26.38 25.16

Palustrine shrub wetlands 11.00 15.51 17.24 18.37

Palustrine forested wetlands 61.15 55.15 51.93 50.73

Other palustrine wetlands 2.32 4.39 4.87 5.50

Total wetland acreage 111.02 103.49 106.14 105.50

Sources: Dahl, T.E., Status and Trends of Wetlands in the Conterminous United States 1986 to 1997 (U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC, 2000).

Note: Totals may not agree with sum of components due to independent rounding.

Last Updated on 1/20/01

Wetlands type	Mid-1950s	Mid-1970s	Mid-1980s	Mid-1990s

	million acres

Estuarine wetlands	5.74	5.53	5.20	5.19
Palustrine marshes	33.13	28.44	26.38	25.16
Palustrine shrub wetlands	11.00	15.51	17.24	18.37
Palustrine forested wetlands	61.15	55.15	51.93	50.73
Other palustrine wetlands	2.32	4.39	4.87	5.50

Total wetland acreage	111.02	103.49	106.14	105.50