If during a period of five consecutive school years, no programs and classes in outdoor science education and conservation education are conducted by the county superintendent of schools pursuant to this article, all real and personal property, title to which is vested in the county superintendent of schools, and all proceeds from the sale, lease, exchange, or other disposition of such real and personal property, shall become part of the county school service fund and may be used for any purpose authorized by the laws applicable to the fund, unless the parties otherwise provide in the agreement which authorizes the acquisition of such property.