The Maryland-National Capital Park and Planning Commission shall have and exercise the authority granted by the provisions of this subtitle to the appropriate county governing body or its duly designated agency to the extent it pertains to: Adopting the Watershed plan; Acquisition, improvement, maintenance and operation of lands and other property for the purposes stated in this subtitle; and Adopting regulations affecting the lands and property and leasing, contracting, and permit authority granted under this subtitle. This power and authority is in addition to that which is stated in Division II of the Land Use Article.