3 Pa. Stat. § 902
It is the declared policy of the Commonwealth to conserve and protect and to encourage the development and improvement of its agricultural lands for the production of food and other agricultural products. It is also the declared policy of the Commonwealth to conserve and protect agricultural lands as valued natural and ecological resources which provide needed open spaces for clean air, as well as for aesthetic purposes. Article VIII, section 2 of the Constitution of Pennsylvania provides that the General Assembly may, by law, establish standards and qualifications for agricultural reserves. Agriculture in many parts of the Commonwealth is under urban pressure from expanding metropolitan areas. This urban pressure takes the form of scattered development in wide belts around urban areas, and brings conflicting land uses into juxtaposition, creates high costs for public services, and stimulates land speculation. When this scattered development extends into good farm areas, ordinances inhibiting farming tend to follow, farm taxes rise, and hopes for speculative gains discourage investments in farm improvements. Many of the agricultural lands in the Commonwealth are in jeopardy of being lost for any agricultural purposes. Certain of these lands constitute unique and irreplaceable land resources of Statewide importance. It is the purpose of this act to provide means by which agricultural land may be protected and enhanced as a viable segment of the Commonwealth's economy and as an economic and environmental resource of major importance.
It is further the purpose of this act to:
3 P.S. § 902