The Legislature finds that the protection and development of the scenic rivers in the state and adjacent and contiguous lands and quality of outstanding resource waters included within each scenic river should be provided for by properly planned and executed rules promulgated by the Grand River Dam Authority. The rules promulgated by the Authority with respect to scenic rivers may address public services, land use, occupancy, structures, lot and plot sizes, density of population and other activities as required for the proper protection of the aesthetic, scenic, historic, archeologic and scientific features of the scenic rivers, or deemed necessary for the protection of the ecosystem and the environment from pollution, despoliation and destruction or waste of natural resources and all other factors adversely affecting the public health, safety and the general welfare so long as the rules comply with the exempt provisions of the Scenic Rivers Act¹ pertaining to farming, ranching, forestry, silviculture and other agricultural uses.