Table 6 — Yields of Douglas-fir plantations having 500 trees per acre surviving 5 years, ttiinning from below to 250 trees per acre at 20 years, and 

 thinning to 100 trees per acre at 50 years such that the mean d.b.h. before and after thinning is the same 



Summary statistics 



Volume per acre Removais per acre 



Merchant- Merchant- Merchant- Merchant- Growth 



Site Trees/ Total able able Trees/ Total able able BA/ Top MOR/ 



index Age acre volume volume volume acre volume volume volume acre CCF height PRD ACC year 







Ft' 



Ft' 



Bdft 





Ft' 



Ft' 



Bdft 



Ft' 





Ft 



Yr 



Ft' 



Ft' 





5 



500 



































2 



3 



5 



2 







0.0 



10 



473 



10 



























1 



5 



8 



10 



4 







0.7 



20 



432 



47 











182 



8 











4 



1 1 



16 



10 



12 







1.8 



30 



232 



155 



























14 



26 



25 



10 



24 







3.3 



40 



225 



396 



37 



108 



















29 



45 



34 



10 



36 



1 



4.9 



50 



217 



741 



260 



829 



117 



400 



140 



448 



21 



30 



41 



10 



22 



1 



6.2 



60 



97 



557 



358 



1203 



















30 



38 



49 



10 



28 



1 



7.5 



70 



94 



821 



665 



2379 



















38 



47 



56 



10 



31 



2 



8.7 



80 



91 



1107 



984 



3724 



















47 



56 



63 



10 



31 



3 



9.8 



90 



88 



1384 



1277 



5069 



















55 



62 



68 



10 



31 



5 



10.8 



100 



84 



1645 



1549 



6391 



















62 



68 



72 



10 



33 



6 



11.6 



110 



80 



1914 



1822 



7852 



















69 



72 



77 



10 



34 



8 



12.5 



120 



77 



2181 



2089 



9366 



















75 



76 



81 



10 



34 



9 



13.4 



130 



73 



2429 



2335 



10838 



















80 



79 



85 



10 



36 



11 



14.2 



140 



70 



2680 



2584 



12379 



















85 



82 



88 



10 



36 



11 



15.0 



150 



66 



2924 



2828 



13919 



















90 



84 



91 















15.8 



5 



500 



































2 



3 



5 



5 







0.0 



10 



478 



27 



























4 



10 



12 



10 



20 







1.2 



20 



447 



226 



3 



9 



197 



40 











15 



28 



27 



10 



55 







3.4 



30 



242 



732 



224 



721 



















47 



66 



40 



10 



87 



2 



5.9 



40 



236 



1589 



1163 



4042 



















83 



105 



52 



10 



108 



6 



8.0 



50 



226 



2601 



2332 



8828 



126 



1444 



1294 



4897 



53 



61 



60 



10 



63 



4 



9.8 



60 



96 



1747 



1646 



6784 



















70 



77 



69 



10 



75 



7 



11.6 



70 



92 



2433 



2326 



10388 



















89 



91 



77 



10 



79 



10 



13.4 



80 



87 



3118 



3003 



14260 



















106 



102 



84 



10 



79 



14 



14.9 



90 



83 



3768 



3645 



18153 



















120 



110 



90 



10 



82 



19 



16.3 



100 



78 



4398 



4267 



21983 



















133 



117 



95 



10 



80 



23 



17.7 



110 



74 



4964 



4828 



25471 



















144 



121 



100 



10 



81 



29 



18.9 



120 



69 



5490 



5350 



28716 



















153 



125 



105 



10 



79 



32 



20.1 



130 



65 



5959 



5815 



31600 



















160 



128 



109 



10 



77 



35 



21.3 



140 



60 



6380 



6234 



34183 



















166 



129 



113 



10 



77 



38 



22.4 



150 



56 



6765 



6617 



36520 



















170 



130 



117 















23.5 



b 



OOO 











u 























2 



4 



5 



16 







0.0 



10 



48a 





























9 



21 



18 



10 



72 







1 .8 







OUT 





771 



£.d.d. 



lob 











42 



61 



40 



10 



137 



1 



5.6 



30 



Z4d 



2026 



1670 



5960 



















99 



122 



57 



10 



171 



9 



8.6 



40 



234 



3649 



3400 



13473 



















152 



172 



71 



10 



183 



25 



10.9 



50 



218 



5229 



4991 



21796 



118 



2816 



2688 



11723 



90 



94 



77 



10 



113 



10 



12.8 



60 



95 



3444 



3318 



15780 



















116 



112 



86 



10 



123 



15 



15.0 



70 



91 



4530 



4389 



22187 



















142 



127 



93 



10 



123 



22 



16.9 



80 



86 



5540 



5386 



28284 



















163 



140 



100 



10 



132 



32 



18.6 



90 



81 



6541 



6375 



34388 



















182 



149 



106 



10 



118 



37 



20.3 



100 



76 



7348 



7173 



39220 



















197 



156 



111 



10 



126 



47 



21.8 



110 



71 



8145 



7964 



43986 



















209 



161 



115 



10 



125 



51 



23.3 



120 



66 



8887 



8699 



48393 



















220 



165 



120 



10 



125 



58 



24.7 



130 



62 



9554 



9362 



52290 



















229 



168 



124 



10 



121 



62 



26.1 



140 



57 



10150 



9954 



55795 



















236 



170 



127 



10 



111 



64 



27.5 



150 



53 



10617 



10419 



58533 



















241 



170 



130 















28.7 



13 



