Forestry Basics

Page 25A tree may be thought of as a collection of logs and pulpwood. Small trees with dbh's ranging from 5 to 11 inches are only suitable for pulpwood. Trees greater than 11 inches dbh are suitable for sawlogs, from which lumber is cut. Typically, pulpwood is measured in 8 foot lengths and sawlogs are measured in 16 foot lengths. Because tree stems taper, the diameter decreases as you move up the stem. Once the upper stem diameter outside of the bark decreases to about 8 inches, the rest of the tree above that point is considered pulpwood. Measuring logs in a standing tree requires some practice. There are several instruments you can either buy or make for measuring the length of logs in a standing tree.

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