Productive forest definition

Productive forest means real property capable of growing not less than 20 cubic feet of wood per acre per year. However, if property has been considered productive forest, an act of God that negatively affects that property shall not result in that property not being considered productive forest.
Productive forest means a forest used for industry, construction, fuel and for other purposes and that can be capable for forest production.
Productive forest means real property capable of growing at least 20 cubic feet of wood per acre per year. "Forest products" includes timber and pulpwood-related products.