248 



TIMBER RESOURCES FOR AMERICA'S FUTURE 



Table 143. — Proportion oj commercial jorest land in the United States and Coastal Alaska, in each owner- 

 ship type on which productivity of recently cut lands fell below the national average, by section and 

 region, 1953 





All 

 owner- 

 ships 



Public ownerships 



Private ownerships 



Section and region 



All 

 public 



Na- 

 tional 

 forest 



Bureau 

 of Land 

 Manage- 

 ment 



In- 

 dian 



Other 

 Fed- 

 eral 



State 

 and 

 local 



AU 

 pri- 

 vate 



Forest 

 indus- 

 tries 



Farm 



Other 

 pri- 

 vate 



North: 



New England 



Per- 

 cent 

 3.0 

 4. 7 

 3.2 

 8.0 

 .8 



Per- 

 cent 

 0. 1 

 . 2 



. 4 



Per- 

 cent 



Percent 



Per- 

 cent 



Per- 

 cent 

 1.6 

 4.0 

 9.0 



Per- 

 cent 



Per- 

 cent 

 4. 

 6.4 

 4.2 

 10. 9 

 1. 



Per- 

 cent 

 13. 1 



Per- 

 cent 

 3. 7 



Per- 

 cent 



Middle Atlantic 









17. 5 



Lake States 





1. 1 





~"\.Z 



9. 2 



14. 9 



2.2 





Central 



10. 5 



Plains 



.3 







5. 3 





0. 2 













Total 



19.7 



1. 





1. 1 



5. 3 



14.6 



. 2 



26. 5 



14. 4 



30.0 



28. 







South: 



South Atlantic _ - 



6. 1 



14.7 



7.3 















8. 4 



20. 



9.7 





18. 1 



27.8 



8.6 



















19. 7 



West Gulf 



.8 









12.3 



1. 5 



15. 8 













Total 



28. 1 



.8 









12. 3 



1.5 



38. 1 





54.5 



35. 5 









" 





West: 



Pacific Northwest: 



Douglas-fir subregion 



Pine subregion 



.6 

 1. 















. 8 

 1. 2 





1. 8 

 1. 4 





. 6 









1. 2 



2. 6 



1. 5 













Total 



1.6 



. 1 



2.2 



1.0 



.6 



. 2 



1.9 



1.6 









1.2 



2.6 



2.0 





3.2 



1 5 



California 





5. 1 







Northern Rocky Mountain 



Southern Rocky Mountan 



11.8 

 23. 3 





6.0 

 1.6 



2. 4 



. 8 



3.7 



2.4 

 1. 7 



1. 6 















Total - ______ 



4.9 



4.3 





5. 1 



35. 1 



1.2 



10.2 



5.2 



3.7 



7.3 



3. 1 







Coastal Alaska 

















































Total, all regions _ _ 



52. 7 



6.1 





6. 2 



40. 4 



28. 1 



11. 9 



69. 8 



18. 1 



91. 8 



66. 6 



Forest lands under administration of the Bureau 

 of Land Management on which recently cut lands 

 rated below the national average comprise only 

 0.1 percent of all commercial forest land and 6.2 

 percent of all land in this type of public ownership. 

 The bulk of this area is in the California Region. 



State and local public ownerships in the below- 

 average category also comprise less than 1 percent 

 of all commercial forest land and about 12 percent 

 of all land in these forms of public ownership. 

 These lands are concentrated primarily in the 

 pine subregion of the Pacific Northwest, and the 

 Northern Rocky Mountain, Southern Rocky 

 Mountain, and West Gulf Regions. 



Productivity of recently cut lands on ownerships 

 of the forest industries fell below the national 

 average only in the New England, Central, and 

 Northern Rocky Mountain Regions (table 141). 

 The bulk of the weak area in this type of ownership 

 is in New England, but here it constitutes only 1.7 

 percent of all commercial forest land (table 142) 



and 13 percent of all such land in the ownerships 

 of the forest industries. 



Productivity Varies With Size 

 OF Trees Left After Cutting 



Previous explanation of concepts (pages 228-229) 

 has shown that the same productivity indexes 

 could be attained by either large or small trees 

 left on the ground after cutting. Thus identical 

 productivity indexes were possible whether resid- 

 ual stands were seedlings and saplings, pole-size 

 trees, sawtimber trees, or any combination of 

 these size classes, provided the effects of composi- 

 tion and premature cutting were the same. Ob- 

 viously seedling and sapling stands will constitute 

 the stocking on areas which have been recently 

 clear cut. Conversely, residual sawtimber stands 

 will be the prevailing stand size class where some 

 degree of partial cutting has been practiced in 



