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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.
The types of vegetation found in each region of the wetland are based on what stage of creation/deterioation is occurring there. The dynamic nature of the deltaic cycle leads to rapid changes in soil stability, salinity, and subsequently vegetation type in the active zone of the marsh.he types of vegetation found in each region of the wetland are based on what stage of creation/deterioation is occurring there. The dynamic nature of the deltaic cycle leads to rapid changes in soil stability, salinity, and subsequently vegetation type in the active zone of the marsh.