In order to determine the conservation value of open space on a specific parcel of land, the applicant shall prepare and the Planning Board shall review a conservation plan of such parcel. The open space protected pursuant to this section shall have conservation value which may include historic, ecological, agricultural, water resource, scenic, or other natural resource value. Lands with conservation value include scenic view corridors, agricultural land, including land with prime farmland soils or soils of statewide importance, aquifers and their recharge areas, ecological habitat for sensitive species, historic buildings or landscapes, large areas or contiguous forest, ridgelines and hillsides visible from public roads or other public areas, state or federal wetlands, lakes, water bodies, and stream corridors. These areas shall be mapped on a separate conservation plan which clearly demarcates these areas.