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Author: Arthur L. Roe
Publisher: Forgotten Books
ISBN: 9780365704003
Category : Business & Economics
Languages : en
Pages : 26
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Book Description
Excerpt from Thinning Western Larch Overstocking threatens production on more than 1 million acres of western larch (larix occidentalis Nutt.) in the northern Rocky Mountains Dense stands have developed on favorable seedbeds found on many large burns and cutover areas in this region. The great number of stems in many of these stands precludes Optimum growth and development of individual trees because growth is being distributed over too many stems per acre. These trees are likely to remain overcrowded for long periods if stands are unmanaged. Trees in such stands will not reach commercially desirable size within a reasonable time. The obvious solution to the over stocking problem is thinning. Few western larch stands have been thinned, and little information has been published on thinnings in larch. Forest managers are now guided principally by information developed in other forest types This paper reports results of two western larch thinning studies located on the Lolo National Forest in western Montana. Briefly, the results show that diameter, basal area, height, and cubic-foot volume growth can be improved by thinning. Concentrating growth on fewer trees per acre Will produce larger trees earlier. 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: Arthur L. Roe
Publisher: Forgotten Books
ISBN: 9780365704003
Category : Business & Economics
Languages : en
Pages : 26
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Book Description
Excerpt from Thinning Western Larch Overstocking threatens production on more than 1 million acres of western larch (larix occidentalis Nutt.) in the northern Rocky Mountains Dense stands have developed on favorable seedbeds found on many large burns and cutover areas in this region. The great number of stems in many of these stands precludes Optimum growth and development of individual trees because growth is being distributed over too many stems per acre. These trees are likely to remain overcrowded for long periods if stands are unmanaged. Trees in such stands will not reach commercially desirable size within a reasonable time. The obvious solution to the over stocking problem is thinning. Few western larch stands have been thinned, and little information has been published on thinnings in larch. Forest managers are now guided principally by information developed in other forest types This paper reports results of two western larch thinning studies located on the Lolo National Forest in western Montana. Briefly, the results show that diameter, basal area, height, and cubic-foot volume growth can be improved by thinning. Concentrating growth on fewer trees per acre Will produce larger trees earlier. 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: Kenneth W. Seidel
Publisher: Forgotten Books
ISBN: 9781390425147
Category : Business & Economics
Languages : en
Pages : 28
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Book Description
Excerpt from Growth of Western Larch After Thinning From Above and Below to Several Density Levels: 10-Year Results Table 1-stand characteristics per acre of western larch before and after the 1970 an 1980 thinnings and in 19753. 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: Dennis M. Cole
Publisher: Forgotten Books
ISBN: 9780428590314
Category : Business & Economics
Languages : en
Pages : 20
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Book Description
Excerpt from Crop-Three Thinning a 50-Year-Old Western Larch Stand: 25-Year Results Table 1. - Plot values before and after thinning in 1949 (before-thinning values are in parentheses) 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: K. W. Seidel
Publisher: Forgotten Books
ISBN: 9780365705048
Category : Business & Economics
Languages : en
Pages : 20
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Book Description
Excerpt from Growth of Young Even-Aged Western Larch Stands After Thinning in Eastern Oregon Although utilization of this species is increasing, there is little growth and yield information available from managed stands to aid the forest manager in thinning operations in pole-sized stands. In 1966, a study designed to provide basic information on the response of pure even - aged larch stands to a wide range of stocking levels was begun in northeastern Oregon. This interim report covers the first 5 - year period of the study. 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: Kenneth W. Seidel
Publisher: Forgotten Books
ISBN: 9781396237348
Category : Business & Economics
Languages : en
Pages : 26
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Book Description
Excerpt from Growth and Yield of Western Larch in Response to Several Density Levels and Two Thinning Methods: 15-Year Results Study results are applicable to larch stands of similar site quality throughout north eastern Oregon and southeastern Washington. 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: Kenneth W. Seidel
Publisher: Forgotten Books
ISBN: 9781391321042
Category : Business & Economics
Languages : en
Pages : 28
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Book Description
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: United States Department Of Agriculture
Publisher: Forgotten Books
ISBN: 9780365694441
Category : Business & Economics
Languages : en
Pages : 486
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Book Description
Excerpt from U. S. Forest Service Research Pater Int-16 to Int-30, 1965-1966 Overstocking threatens production on more than 1 million acres of western larch (larix occidentalis Nutt.) in the northern Rocky Mountains Dense stands have developed on favorable seedbeds found on many large burns and cutover areas in this region. The great number of stems in many of these stands precludes Optimum growth and development of individual trees because growth is being distributed over too many stems per acre. These trees are likely to remain overcrowded for long periods if stands are unmanaged. Trees in such stands will not reach commercially desirable size within a reasonable time. The obvious solution to the over stocking problem is thinning. Few western larch stands have been thinned, and little information has been published on thinnings in larch. Forest managers are now guided principally by information developed in other forest types. This paper reports results of two western larch thinning studies located on the lo10 National Forest in western Montana. Briefly, the results show that diameter, basal area, height, and cubic-foot volume growth can be improved by thinning. Concentrating growth on fewer trees per acre will produce larger trees earlier. 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: Kenneth W. Seidel
Publisher: Forgotten Books
ISBN: 9780428098254
Category : Business & Economics
Languages : en
Pages : 32
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Book Description
Excerpt from Results After 20 Years From a Western Larch Levels-of-Growing-Stock Study Stand density significantly affected diameter growth, which increased as growing-stock level decreased. During the 20 years after thinning, growth increased average stand diameter by inches in low-density plots compared with inches in high-density plots. Height growth was relatively uniform among density levels, and mortality was negligible, except in 1984 when an ice storm caused a loss of about 4 percent of the study trees at the two highest densities. Both basal-area and total cubic-volume increment increased significantly as stand density increased. Although total cubic volume growth was greatest in high-density plots, wood was added more rapidly to fewer potentially usable trees in the low-density plots. Board-foot growth was greatest in the low-density plots because of the large amount of ingrowth from trees reaching merchantable size. 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.
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Category : Forest fires
Languages : en
Pages : 38
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Book Description
Author:
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Category : Forests and forestry
Languages : en
Pages : 282
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