606 



TIMBER RESOURCES FOR AMERICAS FUTURE 

 Table 71. — Productivity of recently cut commercial forest land in public ownership in the 





National forest 



Bureau of Land JIanagement 



Section and region 



Operating 

 area 



Productivity 



Operating 

 area 



Productivity 





Upper 



Medium 



Lower 



Upper 



Medium 



Lower 



North: 



Thousand 

 acres 



806 



1,177 



5,082 



1,829 



8 



Percent 

 97 

 98 

 77 

 89 

 100 



Percent 

 3 

 2 

 22 

 11 



Percent 



Thousand 

 acres 



Percent 



Perceiit 



Percent 



Middle Atlantic 















1 



45 





100 





Central 

































Total or average.. 



8,902 



84 



16 



(-') 



45 





100 









South: 



South Atlantic 



2,544 

 3,407 

 2,603 



94 

 95 



76 



6 

 3 

 24 















2 











West Gulf 



13 



100 















Total or average 



8,554 



89 



10 



1 



13 



100 













West: 



Pacific Northwest: 



Douglas-fir subregion 



4,380 

 6,980 



92 

 89 



8 

 10 





2,020 

 285 



86 

 75 



14 

 25 







1 











11,360 

 5,093 



18,312 

 9,973 



90 

 75 

 68 

 85 



10 

 25 

 22 

 15 



(2) 



2,305 

 118 

 673 

 670 



85 

 30 

 68 

 64 



15 

 70 

 24 



7 









Nnrthern RnnVy Monntain 



10 



8 

 29 



Rnnt.hprn Ttopky Mmintfiin 





Total or average .. ... . .. . 



44,738 



79 



17 



4 



3,766 



76 



17 



7 





United States -.. 



62, 194 

 3,443 



81 

 87 



16 

 13 



3 



3.824 



781 



76 

 100 



18 



6 



Coastal Alaska 











All regions 



65, 637 



81 



10 



3 



4,605 



80 



15 



5 





' The determination of size class of private ownership was based on the 

 total commercial forest land area in the ownership. The operating area of 

 an individual ownership is the combined area of the forest types, within 

 the ownership, in which some cutting was done since January 1, 1947. The 

 operating area of any size class or type of ownership is the sum of the operating 



areas on individual ownerships in that size class or type of ownership. 

 Productivity is expressed as a percentage of operating area found to be in a 

 high, medium, or low productivity class. 

 - Less than 0.5 percent. 



