Any land which is intermittently or periodically waterlogged, including salt marshes, tidal estuaries, marshes, and bogs. Wetlands are rapidly disappearing habitats; see M. Williams (1993) and Liu et al. (2004) Ambio 33, 6 on the loss of wetland and biodiversity.

In the United States a constructed wetland is intentionally created from non-wetland sites for wastewater or storm water treatment; the Constructed Wetland Association (CWA) website has a reading list. The concept of a designer wetland emphasizes the life history strategy of species as the major factor in restoring a wetland type, with no fixed endpoint; see M. Reuss (1998). For wetland restoration, see Tooth and McCarthy (2007) PPG 31, 1 and Holden et al. (2004) PPG 28, 1; see also Van Lonkhuyzen et al. (2004) Env. Management 33, 3. A wetland mitigation bank site is a property purchased and developed by a public agency or utility to earn credits to compensate for adverse impacts to wetlands due to development activities of other agencies, utilities, or in specific instances, private-sector developers; see Gilman (1997) Ocean & Coastal Manage. 34, 2.

http://www.constructedwetland.co.uk/resources/recommended-reading/ The Constructed Wetland Association reading list.