An ecosystem that is flooded by [[water]] and features plants and animals adept to surviving waterlogged environments.

There are four major types of wetlands: swamp, marsh, bog, and fen.  Swamps are dominated by trees, marshes by reeds, and bogs & fens by mosses.  Bogs and fens are collectively called "peatlands" and feature a large amount of peat (partially decomposed plant matter) in their soils and due to this have poor soils that prevent larger plants from growing.

h4. See also
* [[Lily pad]] 

h4. External links

* "Wikipedia":[https://en.wikipedia.org/wiki/Wetland]
沼地 湿地帯