Excerpt from Place of Partial Cutting in Old-Growth Stands of the Douglas-Fir Region Original proponents of the system called it selective timber management in the Douglas -fir region It embodied successive light cuts taking out the better trees mostly over 40 inches d.b.b. It also assumed that smaller trees would continue to move up into the larger diameter classes, and that gradually an all-aged forestwould develop. The system, as originally described, made occasional reference to clear cutting in small groups or spots if satisfactory restocking did not occur after several light tree-selection cuts. But the first stages of the cutting system did not turn out as anticipated, and time had not permitted the later phases of the system to get beyond the theory stage before logging methods changed. 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.

The current trend toward the establishment and care of forests for a wide combination of uses requires flexibility in forest culture and a knowledge of the silvicultural choices available to the resource manager. This publication summarizes for each of 37 major forest types in the United States the silvicultural systems that appear biologically feasible on the basis of present knowledge. Supporting information is given on the occurrence of the 37 forest types, the cultural requirements of the component species, and the biological factors that control the choice of silvicultural options. The text is arranged in regional sections suitable for reprinting.

Set includes revised editions of some issues.