“Nature preserve” means a natural area, and land necessary for its protection, any estate, interest or right in which has been dedicated under this Act to be maintained as nearly as possible in its natural condition and to be used in a manner and under limitations consistent with its continued preservation, without impairment, disturbance or artificial development, for the public purposes of present and future scientific research, education, esthetic enjoyment and providing habitat for plant and animal species and communities and other natural objects.