The legislature has enacted chapter 84.34 RCW, wherein it has declared "that it is in the best interest of the state to maintain, preserve, conserve and otherwise continue in existence adequate open space lands for the production of food, fiber and forest crops, and to assure the use and enjoyment of natural resources and scenic beauty for the economic and social well-being of the state and its citizens" and has further declared "that assessment practices must be so designed as to permit the continued availability of open space lands for these purposes." (Added by Ord. 92-080, July 23, 1992).