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A wetland is a land area that is saturated with water, either permanently or seasonally, such that it takes on the characteristics of a distinct ecosystem.here are four main kinds of wetlands â marsh, swamp, bog and fen (bogs and fens being types of mires). Some experts also recognize wet meadows and aquatic ecosystems as additional wetland types. The largest wetlands in the world include the swamp forests of the Amazon and the peatlands of Siberia.
There are two major types of peatlands bogs and fens, both of which occur in similar climatic and geographic regions. Bog a type of wetland ecosystem characterized by wet, spongy, poorly drained peaty soil, dominated by the growth of bog mosses, Sphagnum, and heaths, particularly Chamaedaphne (see Fig. 6 and Fig.7). Bogs are usually acid areas, frequently surrounding a body of open water. Bogs receive water exclusively from rainfall.here are two major types of peatlands bogs and fens, both of which occur in similar climatic and geographic regions. Bog a type of wetland ecosystem characterized by wet, spongy, poorly drained peaty soil, dominated by the growth of bog mosses, Sphagnum, and heaths, particularly Chamaedaphne (see Fig. 6 and Fig.