16 



.THE OUTLOOK FOR TIMBER IN TTTF, UNITED STATES' 



a further 14 percent between 1962 and 1970 

 (table 8). This strong upward trend occurred in 

 both softwoods and hardwoods, and for both 

 sawtimber and all growing stock. 



Net growth has been rising in all regions, al- 

 though softwood sawtimber in the South and hard- 

 wood sawtimber in the North showed the largest 

 increases (table 9) . There is of course considerably 



more commercial timberland in the East than in 

 the West, and eastern stands are essentially all 

 young growth where mortality is relatively low. 

 In the West, sizable areas still support old growth 

 in which mortality nullifies much of the total 

 growth. 



About two-thirds of the total sawtimber growth 

 of nearly 60 billion board feet in 1970 was on 



Table 8. — Net annual growth of growing stock and sawtimber on commercial timberland, by softwoods and 



hardwoods, and by section, 1952, 1962, and 1970 l 



GROWING STOCK— BILLION CUBIC FEET 



Section 



All species 



Softwoods 



Hardwoods 





1952 



1962 



1970 



1952 



1962 



1970 



1952 



1962 



1970 



North ... . 



4. 1 

 6.3 

 1. 2 

 2.3 



4.9 

 7.5 

 1.3 



2. 7 



5. 5 

 8. 6 

 1. 4 

 3. 1 



1. 1 

 3.6 

 1. 1 

 2.0 



1. 2 

 4.5 

 1. 2 

 2.3 



1.4 

 5.4 

 1.3 

 2.6 



3.0 



2.7 



. 1 



.3 



3.6 



3.0 

 . 1 



.4 



4. 2 



South 



3. 2 



Rocky Mountains 



. 1 



Pacific Coast _ 



. 5 







Total. .. - _. 



13.9 



16.4 



18.6 



7.8 



9.3 



10. 7 



6. 1 



7. 1 



7. 9 







SAWTIMBER— BILLION BOARD FEET 



North 



South 



Rocky Mountains 

 Pacific Coast 



Total 



9.4 



11.5 



13.7 



2.4 



2. 8 



3.6 



7.0 



8.6 



21.2 



24.3 



28.0 



13.6 



16. 7 



20. 1 



7.6 



7.6 



4.3 



4.6 



5. 1 



4.2 



4.5 



4.9 



. 1 



. 1 



10.3 



11.9 



13. 1 



9.4 



10.7 



11.6 



.9 



1.2 



45. 1 



52.3 



59.9 



29.5 



34.7 



40.3 



15.6 



17.6 



10. 1 



7.9 



. 1 



1.5 



19. 7 



1 Data may not add to totals because of truncating. 



Note: Data for 1952 and 1962 differ from data published 

 in earlier reports because of adjustments based on newer 



information from remeasured Forest Survey plots. Data 

 for all years are "trend level" estimates. 



Table 9. — Change in net annual growth of growing stock and sawtimber on commercial timberland, by 



softwoods and hardwoods, and by section, 1962 to 1970 





GROWING STOCK 











Section 



All species 



Softwoods 



Hardwoods 



North ... ... ... ... 



Million cu. ft. 



+ 664 



+ 1, 155 



+ 50 



+ 345 



Percent 



+ 14 



+ 15 



+ 4 



+ 13 



Million cu. ft. 



+ 144 



+ 920 



+ 44 



+ 261 



Percent 



+ 12 



+ 21 



+ 4 



+ 11 



Million cu. ft. 



+ 519 



+ 235 



+ 6 



+ 84 



Percent 

 + 14 



South ... .. ... _ 



+ 8 



Rocky Mountains .____ . 



+ 8 



Pacific Coast . 



+ 22 







Total .. 



+ 2, 214 



+ 14 



+ 1,369 



+ 15 



+ 844 



+ 12 







SAWTIMBER 



North .. . 



Million bd. ft. 



+ 2,218 



+ 3, 735 



+ 451 



+ 1,243 



Percent 

 + 19 

 + 15 

 + 10 

 + 10 



Million bd. ft. 



+ 787 



+ 3,428 



+ 431 



+ 976 



Percent 



+ 28 



+ 21 



+ 9 



+ 9 



Million bd. ft. 



+ 1,431 



+ 307 



+ 38 



+ 267 



Percent 

 + 17 



South 



+ 4 



Rocky Mountains 



+ 35 



Pacific Coast . _ .. . 



+ 22 







Total 



+ 7, 646 



+ 15 



+ 5, 603 



+ 16 



+ 2, 043 



+ 12 







