Archive image from page 33 of A descriptive analysis of Montana's. A descriptive analysis of Montana's forest resources descriptiveanaly11schw Year: 1975 In the short run, the current inventory of merchantable timber is of greatest concern in defining what could be harvested. In 1970 there were over 33 billion cubic feet of timber, about half in sawlog-size materials: Class of timber Vo lurne Percent (Billion Ft3) Sawtimber trees (9 in + ) Sawlog portion 54 Upper stem portion 5 Pole timber trees ( in ) 27 Subtotal growing stock 86 Rough and rotten trees
Archive image from page 33 of A descriptive analysis of Montana's. A descriptive analysis of Montana's forest resources descriptiveanaly11schw Year: 1975 In the short run, the current inventory of merchantable timber is of greatest concern in defining what could be harvested. In 1970 there were over 33 billion cubic feet of timber, about half in sawlog-size materials: Class of timber Vo lurne Percent (Billion Ft3) Sawtimber trees (9 in + ) Sawlog portion 54 Upper stem portion 5 Pole timber trees ( in ) 27 Subtotal growing stock 86 Rough and rotten trees 4 Salvable dead 9 Total 100 An examination of individual species (fig. 12) shows that most of the growing stock is in lodgepole pine and Douglas-fir. Of the two, Douglas-fir 10,000 r 8,000 CD 6,000 O c 4 4,000 2,000 over 9-inch u> .1= o CD ~D c O Q_ CD c O Q_ CD o c c J CD Q_ D) CO c LU Species 0) co 3 CO >- CD D CD o Figure 12.—Net volume of growing stock on commercial forest lands in Montana by syecies and size class3 1970. (From Green and Setzer 1974). 22
Size: 815px × 2454px
Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archival, archive, art, artwork, book, classic, classical, drawing, historic, historical, history, illustrated, illustration, image, page, picture, print, reference, text, vintage
