A NATIONAL PLAN FOR AMERICAN FORESTRY 



233 



NEW /Present 



ENGLAND \ Future 



MIDDLE /Present 



ATLANTIC \ Future 



LAKE 



CEJMTRAL 



SOUTH 



/Present 

 [ Future 



J Present 

 \ Future 



Present 

 ure 



1 Fut 



PACIFIC /Present 

 COAST \ Fu ture 



N. ROCKY /Present 

 MOUNTAIN \Future 



S ROCKY /Present 

 MOUNTAIN | Future 



On intensive 

 forestry area 



BILLION CUBIC FEET 



On extensive 

 forestry area 



10 



On simple 

 protection area 



FIGURE 19. Theoretical future annual growth compared to present growth. (Total growth of saw-timber 



and cordwood in cubic feet.) 



TABLE 24. Minimum growing stocks required to maintain theoretical growth shown 



table 23 



n 



