It is hereby declared to be in the public interest and to be a County purpose to adopt and impose a property tax levy as authorized by RCW 84.34.230 and to create a special fund to which all such levy proceeds shall be credited. The purpose of the fund created is to acquire interest or rights in real property in order 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 County and its citizens.