Gross Yields for Even-Aged Stands of Douglas-Fir and White Or Grand Fir East of the Cascades in Oregon and Washington (Classic Reprint) PDF Download
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Author: P. H. Cochran Publisher: Forgotten Books ISBN: 9780364934951 Category : Business & Economics Languages : en Pages : 32
Book Description
Excerpt from Gross Yields for Even-Aged Stands of Douglas-Fir and White or Grand Fir East of the Cascades in Oregon and Washington Stem analyses of selected sample trees in temporary sample plots in even - aged stands were used to cal culate gross periodic annual incre ments. Volume and basal area of the sample plots at the time of sampling were regarded as net volume and net basal area. Multiple regression methods were used to relate net basal area to site index and age at feet. Then net volume and periodic annual increment were related to site index, age at feet, and net basal area. Gross volume yield was obtained as a cumulative summary of gross volume increment from a breast-high age of 20 years plus the net volume at this age. 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: P. H. Cochran Publisher: Forgotten Books ISBN: 9780364934951 Category : Business & Economics Languages : en Pages : 32
Book Description
Excerpt from Gross Yields for Even-Aged Stands of Douglas-Fir and White or Grand Fir East of the Cascades in Oregon and Washington Stem analyses of selected sample trees in temporary sample plots in even - aged stands were used to cal culate gross periodic annual incre ments. Volume and basal area of the sample plots at the time of sampling were regarded as net volume and net basal area. Multiple regression methods were used to relate net basal area to site index and age at feet. Then net volume and periodic annual increment were related to site index, age at feet, and net basal area. Gross volume yield was obtained as a cumulative summary of gross volume increment from a breast-high age of 20 years plus the net volume at this age. 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: George R. Staebler Publisher: Forgotten Books ISBN: 9780260483058 Category : Business & Economics Languages : en Pages : 50
Book Description
Excerpt from Gross Yield and Mortality Tables for Fully Stocked Stands of Douglas-Fir, Vol. 14 Increasing interest in the practice of intensive forestry has demonstrated the need for gross yield tables for Douglas -fir showing the volume of trees that die as well as volume of live trees. Net yield tables for Douglas fir, published in l930, i/ give the live volume in fully stocked stands at different ages on different sites. As in all normal yield tables, no accounting is made of the volume of trees that die as stands grow older. Presented here are gross yield tables, which include net yield and estimated mortality volume. Mortality tables constructed in then-process of making the gross yield tables are also presented. 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: Francis X. Schumacher Publisher: Forgotten Books ISBN: 9780260875624 Category : Technology & Engineering Languages : en Pages : 56
Book Description
Excerpt from Yield, Stand and Volume Tables for Douglas Fir in California The growth of the species is shown by tables which state the yield of even-aged stands. Over a period of years. Age, timber productive quality of the area, and stand density are the most important growth determining factors of a stand. As there is no satisfactory way of expressing stand density in absolute terms, normal-yield tables based on the ideal density which. Produces maximum volume are presented. 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: Richard L. Williamson Publisher: Forgotten Books ISBN: 9781390357028 Category : Business & Economics Languages : en Pages : 34
Book Description
Excerpt from Initial Thinning Effects in 70-to 150-Year-Old Douglas-Fir-Western Oregon and Washington The present inventory of post-rotation-aged Douglas-fir is so large that immediate harvest cutting is not a practical alternative for all such stands for all owners. Table 1 lists the volume and acreage of Douglas-fir stands in western Oregon and Washington in 1968 by 20 and 30-year age classes. At the average annual rate of cutting million board. 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: P. H. Cochran
Author: P. H. Cochran
Author: P. H. Cochran
Author: P. H. Cochran
Author: Bruce Conrad Larson
Author: George R. Staebler
Author: Donald L. Reukema
Author: Francis X. Schumacher
Author: George R. Staebler
Author: Donald L. Reukema
Author: Richard L. Williamson