Timber Volumes 



Small Share of Volume Is Sawtimber 



The estimated volume of all timber on com- 

 mercial forest land in Minnesota in 1953 was 8,939 

 million cubic feet (table 7). Of the total volume, 31 

 percent is in sawtimber trees and 50 percent in pole- 

 timber trees. Together these make up 7,235 million 

 cubic feet, or about 5 cords per acre. About 19 per- 

 cent is in cull trees and hardwood limbs (fig. 15). 

 From a utilization standpoint, this latter volume is 

 considered nonmerchantable and, as such, is not in- 

 cluded in any estimate of allowable cut or actual 

 timber cut. However, with the rapid strides in 

 technology and increasing emphasis on cellulose for- 

 estry, at least some of this presently nonmerchantable 

 material may in the future be of importance to Minne- 

 sota's wood-using industries. 



Growing stock 



Nonmerchantable 



Figure 15. — The percentage of volume oj all live timber on commercial 

 Jorest land in various kinds of material. 



Of the total growing stock, 39 percent is in softwood 

 species and 61 percent in hardwood species. Jvlost of 

 the growing stock also is in the northeastern division. 

 Pine and spruce account for most of the softwood vol- 

 ume (table 8). Aspen, oak, elm, and basswood are 

 the most important hardwood species in the State. 



Table 7. — .\et volume of all timber on commercial forest land, by 

 class of material, geographic division, and species group, Minnesota, 

 1933 





Total 





Division 





Soft- 

 woods 



Hard- 



Class of material 



North- 

 eastern 



South- 

 eastern 



West- 

 ern 



woods 



Growing stock: 



Sawtimber trees: 



Saw-log portion . 



Upper stem portion 



Million 

 cu. ft. 

 2,228 

 519 



Million 



cu. ft. 



1,488 



361 



Million 

 cu.ft. 

 528 

 113 



Million 

 cu. ft. 

 212 



45 



Million 

 cu. ft. 

 905 

 230 



Million 

 cu. ft. 

 1,323 

 289 



Total 



2,747 

 4,488 



1,849 

 3,690 



641 



522 



257 

 276 



1,135 

 1,694 



1,612 



Poletin.ber trees 



2,794 





7,235 



5,539 



1,163 



533 



2,829 



4,406 







Other material: 



180 

 1,073 









77 



180 



Rotten cull trees 









996 













Total 



Hardwood limbs 



Salvable dead trees 



1,253 



443 



8 



1,053 



352 



8 



125 

 59 



(') 



75, 

 32 

 (') 



77 

 (') 

 4 



1,176 

 443 



4 



Total 



1,704 



1,413 



184 



107 



81 



1,623 







Total, all timber 



8,939 



6,952 



1,347 



640 



2,910 



6,029 



' Negligible. 



Table 8. — Xet Volume of live sawtimber and growing stock on com- 

 mercial forest land, by species, Minnesota, 1953 



Species 



Softwoods: 



White pine 



Red pine 



Jack pine. 



Black spruce 



White spruce 



Balsam fir 



Tamarack 



Cedar 



Total 



Hardwoods: 



Sugar maple 



Soft maples 



Yellow birch 



Basswood 



Elm 



Red oak 



White oak 



Other white oaks 



Aspen 



Balsam poplar 



Cottonwood 



Paper birch 



Ash 



Hickory 



Black walnut 



Other hardwoods 



Total 



AH species 



Sawtimber 



Million 

 bd.-ft. 

 868 

 850 

 1,420 

 363 

 473 

 504 

 166 

 395 



12,538 



Growing 

 stock 



Million 

 cu. ft. 



lid 

 235 

 771 

 579 

 152 

 441 

 218 

 213 



5,039 



2,829 





261 



124 





104 



45 





S3 



15 





833 



297 





1,167 



353 





1,218 



484 





174 



69 





540 



217 





1,716 



1,812 





225 



154 





211 



50 





40S 



416 





462 



306 





9 



9 





13 



4 





108 



51 



7,499 



4,406 



7,235 



Minnesota's Forest Resources 



455115 — 58- 



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