Wetland restoration is the manipulation of a former or degraded wetland's physical, chemical, or biological characteristics to return its natural functions. Restoration practices include:
- Re-establishment, the rebuilding a former wetland; and
- Rehabilitation, repairing the functions of a degraded wetland (US EPA, 2007a).
Wetlands protection is defined as removing a threat or preventing the decline of wetland conditions (US EPA, 2007a). In addition to restoring compromised wetlands, voluntary protection of naturally occurring wetlands is a valuable part of voluntary wetland restoration and protection.