Oregon Revised Statutes Revenue and Taxation § 321.817

(1) Multiple taxation through a yearly ad valorem levy on both trees and forestland managed in sustained yield timber operations discourages conservation, private ownership and investment of capital.

(2) The interests of the state, its citizens and future citizens are best served by sustained yield practices and tax policies that encourage production of forest resources for commerce, recreation and watersheds, stabilize employment levels, prevent large population shifts and encourage millage of timber products within Oregon.

(3) Timber on private lands managed on a sustained yield basis should be treated as a crop and not taxed as real property.

(4) That portion of our state lying east of the summit of the Cascade Mountains differs greatly in forest tree types, soils, climate, growing conditions and topography from western Oregon.

(5) Eastern Oregon forests predominate in Ponderosa pine and associated species, while western Oregon forests predominate in Douglas fir and associated species.