The pie charts indicate the reasons for wetland conversion. Pies are proportional to the amount of wetland loss. Net wetland losses averaged 32.6 thousand acres per year between 1992 and 1997. Agriculture includes cropland, pastureland, CRP, and other farmland.
Development includes urban areas and rural transportation land.
Silviculture includes all non-Federal forest land. Miscellaneous includes rangeland and all other land uses. Wetlands includes palustrine and estuarine wetlands identified using the cowardin system, it does not include deepwater habitats. Shifts between wetlands and other aquatic systems are not considered either gains or losses. Hawaii is included in the West region.