; and (B) operated with equipment, labor, management, and production or cultivation practices that are substantially separate from other agricultural operations, as determined by the Secretary. (2) Comprehensive conservation plan The term comprehensive conservation plan means a plan that— (A) identifies resources of concern, inventories resources, and establishes benchmark data and stewardship objectives; (B) formulates and evaluates alternative approaches to meeting stewardship objectives for all resources of concern; (C) selects among the alternatives and details the particular conservation systems, practices, activities, and management measures to be implemented, maintained, or improved that will enable the producer to meet stewardship objectives for all resources of concern; (D) contains a schedule for the planning, installing, maintaining, improving, and managing the selected conservation systems, practices, activities, and management measures; and (E) contains a description and schedule for on-farm activities to assess and evaluate the conservation systems, practices, activities, and management measures described in the comprehensive conservation plan. (3) Conservation activities (A) In general The term conservation activities means conservation practices, enhancements, bundles, and plans. (B) Inclusions The term conservation activities includes— (i) structural measures, vegetative measures, and land management measures, as determined by the Secretary; (ii) planning needed to address a priority resource concern; and (iii) development of a comprehensive conservation plan. (4) Eligible land (A) In general The term eligible land means— (i) private or tribal land on which agricultural commodities, livestock, or forest-related products are produced; and (ii) lands associated with the land described in clause (i) on which priority resource concerns could be addressed through a contract under the program. (B) Inclusions The term eligible land includes— (i) cropland; (ii) grassland; (iii) rangeland