For the purpose of this article, the following special classifications of real estate are established and defined:
Real estate when devoted to the bona fide production for sale of plants and animals useful to man under uniform standards prescribed by the Commissioner of Agriculture and Consumer Services or when devoted to and meeting the requirements and qualifications for payments or other compensation pursuant to a soil conservation program under an agreement with an agency of the federal government.
Land when devoted to tree growth in such quantity and so spaced and maintained as to constitute a forest area under standards prescribed by the State Forester pursuant to the authority set out in § 58.1-3240 of the Code of Virginia, including the standing timber and trees thereon.
Real estate when devoted to the bona fide production for the sale of fruits of all kinds, including grapes, nuts and berries, vegetables or nursery and floral products, under uniform standards prescribed by the Commissioner of Agriculture and Consumer Services, or when devoted to and meeting the requirements and qualifications for payments or other compensation pursuant to a soil conservation program under an agreement with an agency of the federal government.
Real estate when so used as or preserved for park or recreational purposes, conservation of land or other natural resources, floodways, historic or scenic purposes or assisting in the shaping of the character, direction and timing of community development, under uniform standards prescribed by the Director of the Department of Conservation and Recreation pursuant to the authority set out in § 58.1-3240 of the Code of Virginia and this article.