Excerpt from Managing Lodgepole Pine to Yield Merchantable Thinning Products and Attain Sawtimber Rotations Our stem analysis data also revealed that site class and spacing level had significant effects on taper (p of the portion of the stem between 10 and 30 percent of tree height. Taper in this portion of tree stems is highly correlated with the minimum d.b.b. Of trees suitable for products such as posts, stakes, and rails. We found average taper was greatest inches per foot) for the widest spacing in the lowest site class evaluated (12-foot spacing, site index Average taper was least inches per foot) for the narrowest spacing in the highest site class (6-foot spacing, site index Site class and spacing combinations be tween these extremes had intermediate tapers. We used this information to define a range of 'minimum outside bark, for the different doweled prod nots. The minimum d.b.b. Ranges from the highest quality sites with the narrowest spacing to the lowest quality sites with the widest spacing. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.