Author: Kenneth W. Seidel
Publisher: Forgotten Books
Published: 2018-10-07
Total Pages: 28
ISBN-13: 9781391321042
DOWNLOAD EBOOK →Excerpt from Levels-of-Growing-Stock Study in Thinned Western Larch Pole Stands in Eastern Oregon In terms of timber management, the primary factor influencing the residual stocking level is the forester's estimate of the minimum size tree that will be merchantable in the future. The larger the trees must be to support a commercial thinning, the fewer trees should be left after precommercial thinning; and conversely, if smaller trees are merchantable, the residual stocking should be higher. Western larch (larix occidentalis Nutt.) is a valuable seral species in the mixed conifer forests of north eastern Oregon because of its fast growth rate and desirable wood proper ties. Even-aged larch stands generally become established following fire or other forest disturbances. These stands are often heavily overstocked as seedlings. Stand density control by thinning is an essential part of the management of young larch stands. Because of the shade intolerance of larch, tree crowns in unthinned stands are reduced in size resulting in a decrease in rates of diameter and height growth as early as 9 years of age (schmidt The increasing utilization of larch and other species and the associated intensification of forest management raises questions regarding suitable stocking level regimes for managed larch stands. 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.
Author: Ralph D. Nyland
Publisher: Waveland Press
Published: 2016-05-13
Total Pages: 680
ISBN-13: 147863376X
DOWNLOAD EBOOK →Silviculture: Concepts and Applications reflects a belief that all the tools of silviculture have a useful role in modern forestry. Through careful analysis and creative planning, foresters can address a wide array of commodity and nonmarket interests and opportunities while maintaining dynamic and resilient forests. A landowner’s needs, circumstances, and site conditions guide a silviculturist’s judgment and decision making in finding the best ways to integrate the biologic-ecologic, economic-financial, and managerial-administrative requirements at hand. The Third Edition of this influential text provides a foundational basis for rigorous discussion of techniques. The inclusion of numerous real-world examples and balanced coverage of past and current practices broadens the concept of silviculture and the ways that managers can use it to address both traditional and emerging interests in forests. A thorough discussion of new and proven interpretations increasingly directs the attention of foresters toward the role silviculture plays in creating, maintaining, rehabilitating, and restoring forests that can sustain an expanding variety of ecosystem services.