Stresses Arising from Growth in Trees PDF Download
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Author: J. D. Boyd
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 86
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Book Description
Author: J. D. Boyd
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 86
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Book Description
Author: Robert R. Archer
Publisher: Springer Science & Business Media
ISBN: 3662025116
Category : Technology & Engineering
Languages : en
Pages : 251
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Book Description
Although over 40 years have passed since Jacobs (1945) convincingly established the basic radial pattern of residual growth stress in growing trees, yet this phenomenon is still not widely appreciated in wood science and technology circles. This is in spite of the fact that the presence of these stresses of sizeable magnitudes has long been recognized as a primary cause of shakes and splits in logs as well as the warping of lumber sawn in the green condition. The presentation of the subject of growth stresses in trees presents some special problems due to the wide range of specialists who potentially might have an interest in the subject. For example, tree physiologists interested in questions such as the relation of mechanical stress to stem taper and the role of reaction wood and gravity forces in determining tree crown form encounter growth stress models. Silvi culturists interested in the relation ofthinning practices to wood quality find that wood properties are correlated with growth stress levels which are in turn significantly changed by cutting practices. Wood techno logists interested in the relation of residual growth stress gradients in green logs to the dimensional quality of sawn and seasoned lumber are forced to take a more quantitative approach to the effect of growth stresses than might have been the case in the past.
Author: Theodore Thomas Kozlowski
Publisher:
ISBN: 9780295956367
Category : Science
Languages : en
Pages : 192
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Author: Theodore Thomas Kozlowski
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 15
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Author: Irwin L. Post
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Author:
Publisher:
ISBN:
Category : Acid deposition
Languages : en
Pages : 986
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Author: Wenhao Dai
Publisher: CRC Press
ISBN: 1498746098
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
This book addresses the importance woody plants have in agriculture, forestry, and the environment and how various stresses affect their performance. It reviews physiological and molecular responses of woody plants to major environmental stresses and focuses on the mechanisms involved in imparting resistance to stress. Chapters cover basics of plant physiology including plant structure and plant growth, photosynthesis, respiration, plant growth regulation, abiotic and biotic plant stresses including drought, water logging, nutrient deficiency, salinity, chilling, freezing, heat, oxidative stress, and heavy metal toxicity.
Author: Bruce J. Zobel
Publisher: Springer Science & Business Media
ISBN: 3642740693
Category : Technology & Engineering
Languages : en
Pages : 376
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Book Description
Wood is the usual end product of a forestry operation. Because of its importance, numerous studies have been made relative to wood prop erties, the causes of wood variation, and how best to develop wood for desired products. There is voluminous literature related to these subjects, but it is neither well known nor appreciated by foresters because the publications are often not available or are not well understood by the forester or by those who use the wood. Frequently, the literature is confusing and contradictory, making it difficult for the nonspecialist to use what information is available. In order to produce and use wood efficiently, the variation pat terns within trees, among trees within species, and among species must be understood. This also requires some knowledge of the causes of variation and the effects of different wood properties upon utiliza tion. The information about variation patterns, their causes, and con trol and effect upon the product must be known by the tree grower, the tree breeder, and the tree harvester as well as by those who ultimately convert wood into a final, salable product.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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