Type of wetland that does not accumulate appreciable peat deposits and is dominated by herbaceous vegetation. Marshes may be either fresh- or saltwater, and tidal or non-tidal. (United Nations Organization (1997) Glossary of environment statistics. Department for Economic and Social Information and Policy Analysis, Statistics Division. Studies and Methods, ST/ESA/STAT/Ser.F, (67): 83p. (http://unstats.un.org/unsd/environmentgl/);)
