It shall be the duty of a landowner or operator of forestland, whether public or private, to manage, operate, and harvest forest crops that promote conditions favorable for regrowth consistent with the policies of this chapter. All forestland on which a lumbering operation is conducted should be left by the owner or operator in a favorable condition for regrowth by preserving trees of commercial species sufficient under normal conditions to maintain continuous forest growth or restocking so as to ensure continuous or successive forest crops. So far as practicable, all desirable seedlings and saplings should be protected during logging operations. When necessary, reforestation practices should be employed to ensure renewed forest growth after harvesting of forest crops. (Added 1977, No. 253 (Adj. Sess.), § 1.)