To renew the millage expiring after the December 1, 2010 levy, shall the limitation on taxes which may be imposed each year for all purposes on real and tangible property in Washtenaw County be increased as provided in Section 6, Article 9 of the Michigan Constitution and the Board of Commissioners be authorized to levy a tax not to exceed one fourth of a mill, reduced by the Headlee Amendment to 0.2409 ($0.2409 per $1,000 of state equalized valuation) on the taxable value of such property for a period of ten years beginning with the levy made on December 1, 2011 (which will generate estimated revenues of $3,492,000 in the first year) for the purpose of purchasing natural areas in order to preserve them, paying the costs of operating a land preservation program and paying the costs of maintaining the land purchased?