Definition of Terms 



Commercial Forest Land 



Land bearing or capable of bearing commercial timber and economically 

 accessible, now or prospectively. It may or may not be reserved from 

 cutting. 



Stocked commercial forest 



Areas with generally 3 thousand board feet or more 2/ of sawtimber 

 per acre, or areas that are more than 10 percent stocked with poles, 

 seedlings, or saplings. 



Commercial stands are classified into 5 forest types as follow: 



Ponderosa pine - Stands in which ponderosa pine constitutes 25 

 percent or more of the total net cubic volume. 



Douglas-fir - Stands in which Douglas-fir constitutes 60 percent 

 or more of the total net cubic volume. 



Spruce - Stands in which Engelmann and/or white spruce constitute 

 50 percent or more of the total net cubic volume, 



Lodgepole pine - Stands in which lodgepole pine constitutes 50 

 percent or more of the total net cubic volume. 



Hardwood - Stands in which hardwoods constitute 50 percent or 

 more of the total net cubic volume. 



Commercial stands are also grouped into 3 classes according to size 

 of trees predominating. These are: 



Sawtimber stands - Stands in which a plurality of the total net 

 cubic volume is in trees of sawtimber size and that generally 

 average 3 thousand board feet or more of sawtimber volume per acre . 



Hardwoods and pines 11.0 inches in diameter and larger at breast 

 height are classed as sawtimber. For other species, trees 13.0 

 inches and larger are classed as sawtimber. 



2/ All board-foot volumes mentioned in the definitions are determined by 

 the Scribner rule. 



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