A Survey of Factors Affecting Regeneration of Rocky Mountain Douglas-fir PDF Download
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Author: Russell A. Ryker
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 28
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Book Description
Author: Russell a Ryker
Publisher: Forgotten Books
ISBN: 9780365705819
Category :
Languages : en
Pages : 36
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Book Description
Excerpt from A Survey of Factors Affecting Regeneration of Rocky Mountain Douglas-Fir To help delineate regeneration problems before developing a research program, I conducted a field reconnaissance in 1968 and 1969, of Rocky Franco) cutting areas in Forest Service Regions 1 and 4. From file records and field measurements, I obtained information about topography, soils, seed bed, shade, competing vegetation, opening size, habitat type, and history of treatment. Success of Douglas-fir regeneration is presented as percent milacre stocking. Results indicate that the effects of various regeneration methods and the success expected depend largely upon habitat type. Thus, attempts to generalize about seedbed, shade, and other species require ments can be misleading. Results were used to develop a research pro gram for regeneration of Douglas-fir. Problem solutions seemed to center around the need for more careful administration of planting operations and plantation protection and for development of silviculture prescriptions to match species requirements and site potential. 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: Russell A. Ryker
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 28
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Book Description
Author: Russell A. Ryker
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages :
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Book Description
Author: Russel A. Ryker
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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Book Description
Author: Earl Hazeltine Frothingham
Publisher: Forgotten Books
ISBN: 9780265884881
Category : Science
Languages : en
Pages : 44
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Book Description
Excerpt from Douglas Fir: A Study of the Pacific Coast and Rocky Mountain Forms Montana, Colorado, Idaho, and Utah third. In 1907, board feet of Douglas fir were cut in the Rocky Mountains, which constituted per cent of the total cut for this region; The per centage was lowest per cent) in Arizona, and, strangely enough, next to the highest per cent) in the adjoining Territory of New Mexico. 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: Leo Anthony Isaac
Publisher: Forgotten Books
ISBN: 9780260678034
Category :
Languages : en
Pages : 54
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Book Description
Excerpt from Factors Affecting Establishment of Douglas Fir Seedlings Table 2. - Precipitation recorded for the months April to September during the 21-year period 1911 - 31 at Wind River Experimental Forest,1 Carson, Wash. 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: Aaron M. Ellison
Publisher: MDPI
ISBN: 3039213091
Category : Science
Languages : en
Pages : 274
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Book Description
This book is a printed edition of the Special Issue Causes and Consequences of Species Diversity in Forest Ecosystems that was published in Forests
Author: James H. Speer
Publisher: University of Arizona Press
ISBN: 0816547386
Category : Social Science
Languages : en
Pages : 360
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Book Description
Tree-ring dating (dendrochronology) is a method of scientific dating based on the analysis of tree-ring growth patterns. As author James Speer notes, trees are remarkable bioindicators. Although there are other scientific means of dating climatic and environmental events, dendrochronology provides the most reliable of all paleorecords. Dendrochronology can be applied to very old trees to provide long-term records of past temperature, rainfall, fire, insect outbreaks, landslides, hurricanes, and ice storms--to name only a few events. This comprehensive text addresses all of the subjects that a reader who is new to the field will need to know and will be a welcome reference for practitioners at all levels. It includes a history of the discipline, biological and ecological background, principles of the field, basic scientific information on the structure and growth of trees, the complete range of dendrochronology methods, and a full description of each of the relevant subdisciplines. Individual chapters address the composition of wood, methods of field and laboratory study, dendroarchaeology, dendroclimatology, dendroecology, dendrogeomorphology, and dendrochemistry. The book also provides thorough introductions to common computer programs and methods of statistical analysis. In the final chapter, the author describes "frontiers in dendrochronology," with an eye toward future directions in the field. He concludes with several useful appendixes, including a listing of tree and shrub species that have been used successfully by dendrochronologists. Throughout, photographs and illustrations visually represent the state of knowledge in the field.
Author: Mary D. Davis
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 158
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Book Description
Author: Gregory A. Giusti
Publisher: UCANR Publications
ISBN: 9781879906754
Category : Technology & Engineering
Languages : en
Pages : 132
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Book Description
Designed for professional planners, consultants, and landscape architects, this new edition provides science-based information that can guide decision-making. As more development occurs in the oak woodlands this guide can provide a framework for preserving this icon of the California landscape.
