4) Those lands within the park which have been degraded or altered by the introduction of exotic animals or plants mining cutting, burning colonization farming, etc. once the future management goals for these lands have been set (see Resource Management and Protection), an action programs directed at recuperation will be initiated. In some cases restoration to original land forms may be necessary In others, planting of native vegetation in eroded areas may be required In some situations scientists and managers may wish to carry out controlled experiments in these zones to determine optimum methods for achieving the recovery of protective vegetation or to monitor other types of environmental change. Installations and equipment necessary to facilitate the implementation of these programs will be per- mitted within these zones. These zones might be called recuperation, restoration, recovery, or reclamation zones.