See Full Constitution
Article VI

Section 53. Forestry amendment

The Legislature may by general law define and classify forest lands and provide for cooperation by contract between the state and the owner in the planting, cultivation, protection, and harvesting thereof. Forest lands embraced in any such contract may be exempted from all taxation or be taxed in such manner, including the imposition of a severance tax or charge as trees are harvested, as the Legislature may from time to time provide. But any tax measured by valuation shall not exceed the aggregate rates authorized by section one of article ten of this constitution.