Excerpt from Iowa's Forests, 1999-2003: Part A The demands placed on forest resources will continue to increase, as will biological threats from nonnative plants and insects. The challenge is to maintain Iowa's forests in such a way that they are available for use and enjoyment today and for future generations. Reporting on trends in the condition and status of forest resources is critical in determining whether they are being used or maintained in a sustainable way. The usda Forest Service's Forest Inventory and Analysis program in partnership with the Iowa Department of Natural Resources' Bureau of Forestry inventoried Iowa's forest resources in 1954, 1970, and 1990. Beginning in 1999, annual inventories were conducted such that a portion of field plots was inventoried each year. 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.