Table 20.— Poteiititil ainiiial yield of existing stands and restocking areas' in the Lake States 



region, under good management 







All timber 







Saw timber 







.'Average 

 per acre 





Year 



All 



Soft- 



Hard- 



All 



Soft- 



Hard- 







species 



woods 



woods 



species 



woods 



woods 











Million 



Million 



Million 



Million 



Million 



Million 



Cubic 



Board 





- 



cubic feet 



cubic feet 



cubic feet 



hoard feet 



board feet 



board feet 



feet 





feet 





1960 _._ 



730 



190 



540 



1,300 



400 



900 





15 





26 



1980 



820 

 1,000 

 1,220 



250 

 380 

 500 



570 

 620 

 720 



1,500 

 1,920 

 2,770 



480 

 600 

 770 



1,020 

 1,320 

 2,000 





16 

 20 

 24 





30 



2000 



38 



2020 _. 



55 



2040.. 



1,440 

 1,500 



580 

 600 



860 

 900 



3, 3.W 

 3,400 



1,000 

 1.100 



2,330 

 2,300 





79 





67 



20S0 _..-. 



>0 





6S 



' Yields from possible future plantations not included; does not include surplus growth left to build up growing stock. 



30 



Forest Resource Report No. 1, U. S. Departineiit of Ao^ritnlh 



