Forest Resources Of Pennsylvania PDF Download

Excerpt from Forest Resources of Pennsylvania The previous inventory of 1978 (powell and Considine 1982) found the Pennsylvania forests generally in good shape. Growth exceeded harvest by a wide margin and total volume of all species showed a considerable increase over 1965. The major concerns in 1978 were insect and disease problems, especially those associated with gypsy moth defoliation. At that time, mortality related to gypsy moth defoliation was only a serious problem in the Northeastern and Pocono Units of the state. 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.