Using some of the original species plus, where necessary, exotic species to reforest the site. In this case there is no attempt to recreate the original ecosystem, rather the objective is to return the forest to a stable and productive condition.
David Lamb, 1994

The process of making land "productive" again. An alternative ecosystem is created with different structure and function than the original ecosystem. It usually has low species diversity and includes introduced species. It requires maximal human input to exist. Land uses include parklands, croplands, and commercial forests.
NSW-EPA, 1995

Actions taken to restore or reclaim site productivity, water quality or other values
USDA Forest Service, 1997

Rehabilitation is making the land useful again after a disturbance. It involves the recovery of ecosystem functions and processes in a degraded habitat. Rehabilitation does not necessarily reestablish the predisturbance condition, but does involve establishing geological and hydrologically stable landscapes that support the natural ecosystem mosaic.
Willamette Restoration Initiatives, 1999

To re-establish the productivity and some, but not necessarily all, of the plant and animal species thought to be originally present at a site. For ecological or economic reasons the new forest might also include species not originally present at the site. The protective function and many of the ecological services of the original forest may be re-established.
Gilmour, D.A. et al., 2000

A management strategy applied in degraded forest lands that aims at restoring the capacity of a forest to produce products and service.
ITTO, 2002

To return an area of land or a road or track surface to an original, proper and stable condition. This may involve reshaping, spreading topsoil, construction of banks and revegetation.
Northern Rivers Private Forestry website

To re-establish the productivity and some, but not necessarily all, of the plant and animal species thought to be originally present at a site. For ecological or economic reasons the new forest might also include species not originally present at the site. In time, the protective function and many of the ecological services of the original forest may be re-established.
UNEP World Conservation Monitoring Center website