Table S. --Product recovery - number of pieces and volume vn ft^ 



Unit : 



1 





2 



: 3 



: 4 



: 5 



: Total 





Pt*oHi If 1" 





















\ 





3 



2 



3 



2 



\\ 





House log -number 



66 





36 



81 



30 



64 



277 





Studlog-number 



350 





154 



356 



196 



257 



1,313 





Number pieces, total 



417 





193 



439 



229 



323 



1,601 





Cubic volume, total 



976 





400 



932 



496 



1,015 



3,819 



31% 



Fencepost 



















Class-1 



34 





26 



14 



5 



7 













270 



472 



257 



335 







3 



680 





395 



643 



370 



404 







4 



613 





386 



635 



380 



432 







5 



632 





359 



558 



240 



375 







Number pieces 2, 



488 





1,436 



2,322 



1,252 



1 ,553 



9,041 





Cubic volume 2, 



030 





1,188 



2, 141 



1,198 



1,832 



8,389 



69% 



Total pieces -product 2, 



905 





1,629 



2,661 



1,481 



1,876 



10,642 





Total volume-product 3,006 





1,588 



3,073 



1,694 



2,847 



12,208 





Pieces hauled 1,495 





797 



1,313 



326 



671 



4,602 





Product specifications: 



















Saw log = 12-inch 



diameter 





8-foot 



length 











Studlog = 6-inch 



diameter 





8-foot 



length 











Houselog = 8-inch 



diameter 





12-foot 



length 











Fencepost 1 = 6-inch 



diameter 



X 



7- foot 



length 











Fencepost 2 = 5-inch 



diameter 





6-foot 



length 











Fencepost 3 = 4-inch 



diameter 





6-foot 



length 











Fencepost 4 = 3-inch 



diameter 



X 



6-foot 



length 











Fencepost 5 = 2-inch 



diameter 





5-foot 



length 











The number of pieces hauled from the woods was less than half (43 percent) the 

 number of pieces finally derived from the material. This indicates how whole-tree 

 logging can reduce handling costs. Whole-tree logging also permits efficient product 

 choices, which improves product values. Conversely, multiproduct utilization permits 

 full -tree logging, which reduces handling costs up to the product-bucking operation. 



Residue Utilization Analysis 



As defined earlier, residues are any unused wood materials. Harvest residues are 

 slash. Yard residues are the residues left in the post yard. In the fall of 1973, post 

 demand was high. The incremental cost of handling yard residues might be considered 

 as the additional cost incurred to assure maximum material recovery. 



The total product/yard residue ratio indicates the proportion of all the material 

 hauled from the logging site that was usable. Conversely, the reciprocal of the ratio 

 indicates the proportion of the hauled material that was yard residue. Total logging 

 residue was only slightly higher than the total yard residue. This indicates that 

 about 46 percent of all the residues generated on all five units was hauled away. 



11 



