APPENDIX III. TIMBER SUPPLY TABLES 



315 



Table 2. — Estimated costs and softwood harvest change with intensified forest management on National Forests, by rate of 



return grouping at 1970 -prices 



Section and return group 



Acres 



Costs 



Softwood harvest change within the decade ' 





Direct 



Total 



1-10 years 



11-20 



years 



21-30 years 



31-40 years 



41-50 



years 



North: 

 - J%+ 



Thousands 



304 

 145 

 127 



223 

 137 

 410 



241 

 860 

 804 



276 

 327 

 427 

 231 



803 



850 



1,824 



1,035 



Million 

 dollars 



5.3 

 6.8 

 6.1 



3.8 



7.9 



24.8 



4.3 

 23.0 

 49.7 



5.1 



7.9 



20.9 



15.1 



14.2 

 26.9 

 74.8 

 64.8 



Million 

 dollars 



10.8 

 13.6 

 12.0 



7.9 

 15.3 



47.7 



8.5 

 44.8 

 98.3 



10.5 

 15.8 

 41.3 

 29.6 



29.2 

 53.2 

 145.8 

 127.9 



Million 

 bd. ft. 



MiUion 

 cu.ft. 



Million 

 bd.ft. 



130 



MiUion 

 cu.ft. 



104 



Million 

 bd.ft. 



844 

 22 



Million 

 cu.ft. 



40 

 79 

 32 



153 

 2 



Million 

 bd. ft. 



1,747 

 143 



856 

 334 



Million 

 cu.ft. 



53 



5 



42 



5 

 105 

 233 



58 

 110 

 275 



Million 

 bd.ft. 



1,396 

 611 

 301 



1,714 

 634 

 396 



1,080 

 3,860 

 2,680 



970 

 1,350 

 2,150 



890 



4,080 

 3,675 

 6.707 

 3,570 



Million 

 cu.ft. 



-74 



5 to 7H% 







32 



2H to 5^ 











39 



South: 



£+ 







93 



2 



491 

 66 



9 



5 to7H% 







18 



2)4 to 5<^ 











61 



Rocky Mountains: 

 5 to 7J^% - 



683 

 1,740 

 1,973 



728 

 1,013 

 1,613 



668 



728 

 1,696 

 3.353 

 2,641 





967 

 2,833 

 2,647 



970 

 1,350 

 2,150 



890 



1.193 

 2,317 

 4,983 

 3.537 



106 



1,023 

 3,347 



2,663 



970 

 1.350 

 2,150 



890 



2,305 

 2,461 

 5,497 

 3,553 



193 



81 

 32 



1,080 

 3,860 

 2,680 



970 

 1,350 

 2,150 



890 



3.573 

 2,907 

 6,010 

 3,570 





2VS to 5% . .. 





010 2^ - 





Pacific Coast: 

 - %+ . 





5 to 7Ki% . . 





2>^to5 < > 





to - . - 





All regions: 

 7J4%4- -. 



—65 



5 to 7)j% 



50 



2H to 5% . 



100 



to 2^% .... 









Total studied 



4,512 



180.7 



356.1 



8,418 





12,030 



106 



13,816 



306 



16,060 



443 



18,032 



85 







1 An allowable cut effect from intensified management was assumed in estimating future increases in harvests, but not in calculating rates of return on 

 increased costs of management. 



