Juvenile Wood in Coniferous Trees

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ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Juvenile Wood in Coniferous Trees by : Thomas Thörnqvist

Download or read book Juvenile Wood in Coniferous Trees written by Thomas Thörnqvist and published by . This book was released on 1993 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of juvenile wood on wood quality in buildings, pulp-wood, and other end products. Also shows how forestry management practices affect juvenile wood formation.

Juvenile Wood in Forest Trees

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Publisher : Springer Science & Business Media
ISBN 13 : 3642721265
Total Pages : 311 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Juvenile Wood in Forest Trees by : Bruce J. Zobel

Download or read book Juvenile Wood in Forest Trees written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trend in forestry is toward shorter rotations and more complete utiliza tion of trees. The reasons are: (1) financial pressures to obtain rapid returns on the forestry investment made possible by an earlier harvest; (2) enforced harvest of young plantations to maintain a continuing supply of cellulose for mills where wood shortages are experienced; (3) thinning young plantations, both because they were planted too densely initially and because thinning is done where long rotation quality trees are the forestry goal; (4) more intensive utilization is being done using tops and small diameter trees; and (5) there is interest in using young (juvenile) wood for special products because of its unique characteristics and the development of new technologies. The largest present-day source of conifer juvenile wood is from thinnings of plantations where millions of hectares of pine were planted too densely. Because of the better growth rate resulting from improved silviculture and good genetic stock, plantations will need to be thinned heavily. As a result of this trend, young wood makes up an increasingly larger proportion of the total conifer wood supply each year. Large amounts of juvenile wood from hard woods are also currently available, especially in the tropics and subtropics, because of the fast growth rate of the species used, which results in shorter rotations and ess~ntially all juvenile wood.

Formation and Properties of Juvenile Wood in Southern Pines

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ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Formation and Properties of Juvenile Wood in Southern Pines by :

Download or read book Formation and Properties of Juvenile Wood in Southern Pines written by and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: To satisfy the increasing demand for forest products, much of the future timber supply will be from improved trees grown on managed plantations. This fast-grown resource will tend to be harvested in short age rotations and will contain higher proportions of juvenile wood than that of current harvests. In anticipation of this resource, definitive information is needed on the influence of juvenile wood on lumber properties so that grading rules and the associated allowable design stresses can be modified as needed. This document reports the results of an extensive review of the literature on juvenile wood in southern pines. This report defines and discusses the extent, occurrence, and characteristics of juvenile wood. It reviews the effects that environment and silviculture have on the amount of juvenile wood produced. Finally, the impacts that juvenile wood has on mechanical properties were quantified. The results of this quantification are significant to all producers of fast-grown plantations. Research has clearly shown that juvenile wood will have a detrimental impact on allowable design stresses for visually graded lumber. It is critical that methods are developed to more carefully manage fast-grown plantation wood for its most efficient use. This review should serve as an overall collection of knowledge pertaining to juvenile wood research in southern pines and should help in the decision-making efforts to improve seedling selection techniques and silvicultural practices to maximize the potential for fast-grown plantations of southern pines.

Juvenile Wood in Forest Trees

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (742 download)

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Book Synopsis Juvenile Wood in Forest Trees by : Bruce Zobel

Download or read book Juvenile Wood in Forest Trees written by Bruce Zobel and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Forest Products and Wood Science

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Publisher : John Wiley & Sons
ISBN 13 : 111942643X
Total Pages : 504 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis Forest Products and Wood Science by : Rubin Shmulsky

Download or read book Forest Products and Wood Science written by Rubin Shmulsky and published by John Wiley & Sons. This book was released on 2019-03-11 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: The updated seventh edition of the classic text on wood science and forestry The seventh edition of Forest Products and Wood Science: An Introduction offers a fully revised and updated review of the forest products industry. This classic text contains a comprehensive review of the subject and presents a thorough understanding of the anatomical and physical nature of wood. The authors emphasize its use as an industrial raw material. Forest Products and Wood Science provides thorough coverage of all aspects of wood science and industry, ranging from tree growth and wood anatomy to a variety of economically important wood products, along with their applications and performance. The text explores global raw materials, the increasing use of wood as a source of energy and chemicals and environmental implications of the use of wood. This edition features new material on structural composites, non-structural composites, durability and protection, pulp and paper, energy and chemicals, and global raw materials. This seventh edition of the classic work: Contains new information on a variety of topics including: structural composites, non-structural composites, durability and protection, pulp and paper, energy and chemicals and global raw materials Includes a fully revised text that meets the changing needs of the forestry, engineering, and wood science academics and professionals Presents material written by authors with broad experience in both the private and academic sectors Written for undergraduate students in forestry, natural resources, engineering, and wood science, as well as forest industry personnel, engineers, wood-based manufacturing and using professionals, the seventh edition of Forest Products and Wood Science updates the classic text that has become an indispensable resource.

Wood Variation

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Publisher : Springer Science & Business Media
ISBN 13 : 3642740693
Total Pages : 376 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Wood Variation by : Bruce J. Zobel

Download or read book Wood Variation written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Wood Quality Factors in Loblolly Pine

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Publisher : Tappi
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (45 download)

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Book Synopsis Wood Quality Factors in Loblolly Pine by : Robert A. Megraw

Download or read book Wood Quality Factors in Loblolly Pine written by Robert A. Megraw and published by Tappi. This book was released on 1985 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Forest Trees and Stands

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Publisher : Springer Science & Business Media
ISBN 13 : 9048131707
Total Pages : 463 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Modeling Forest Trees and Stands by : Harold E. Burkhart

Download or read book Modeling Forest Trees and Stands written by Harold E. Burkhart and published by Springer Science & Business Media. This book was released on 2012-04-27 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing upon a wealth of past research and results, this book provides a comprehensive summary of state-of-the-art methods for empirical modeling of forest trees and stands. It opens by describing methods for quantifying individual trees, progresses to a thorough coverage of whole-stand, size-class and individual-tree approaches for modeling forest stand dynamics, growth and yield, moves on to methods for incorporating response to silvicultural treatments and wood quality characteristics in forest growth and yield models, and concludes with a discussion on evaluating and implementing growth and yield models. Ideal for use in graduate-level forestry courses, this book also provides ready access to a plethora of reference material for researchers working in growth and yield modeling.

A Technical Workshop

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Publisher : Forest Products Society
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis A Technical Workshop by : Doris Robertson

Download or read book A Technical Workshop written by Doris Robertson and published by Forest Products Society. This book was released on 1986 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wood Quality and its Biological Basis

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Publisher : John Wiley & Sons
ISBN 13 : 1405147814
Total Pages : 240 pages
Book Rating : 4.4/5 (51 download)

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Book Synopsis Wood Quality and its Biological Basis by : John Barnett

Download or read book Wood Quality and its Biological Basis written by John Barnett and published by John Wiley & Sons. This book was released on 2009-02-18 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is the most versatile raw material available to man. It isburned as fuel, shaped into utensils, used as a structuralengineering material, converted into fibres for paper production,and put to newer uses as a source of industrial chemicals. Its quality results largely from the chemical and physicalstructure of the cell walls of its component fibres, which can bemodified in nature as the tree responds to physical environmentalstresses. Internal stresses can accumulate, which are releasedcatastrophically when the tree is felled, often rendering thetimber useless. The quality of timber as an engineering materialalso depends on the structure of the wood and the way in which ithas developed in the living tree. Tree improvement for quality cannot be carried out without anunderstanding of the biological basis underlying wood formation andstructure. This volume brings together the viewpoints of bothbiologists and physical scientists, covering the spectrum from theformation of wood to its structure and properties, and relatingthese properties to industrial use. This is a volume for researchers and professionals in plantphysiology, molecular biology and biochemistry.

Wood Density of the Southern Pines

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ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Wood Density of the Southern Pines by :

Download or read book Wood Density of the Southern Pines written by and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Size- and Age-Related Changes in Tree Structure and Function

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Publisher : Springer Science & Business Media
ISBN 13 : 9400712421
Total Pages : 511 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Size- and Age-Related Changes in Tree Structure and Function by : Frederick C. Meinzer

Download or read book Size- and Age-Related Changes in Tree Structure and Function written by Frederick C. Meinzer and published by Springer Science & Business Media. This book was released on 2011-06-29 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of trees live and grow all around us, and we all recognize the vital role they play in the world’s ecosystems. Publicity campaigns exhort us to plant yet more. Yet until recently comparatively little was known about the root causes of the physical changes that attend their growth. Since trees typically increase in size by three to four orders of magnitude in their journey to maturity, this gap in our knowledge has been a crucial issue to address. Here at last is a synthesis of the current state of our knowledge about both the causes and consequences of ontogenetic changes in key features of tree structure and function. During their ontogeny, trees undergo numerous changes in their physiological function, the structure and mechanical properties of their wood, and overall architecture and allometry. This book examines the central interplay between these changes and tree size and age. It also explores the impact these changes can have, at the level of the individual tree, on the emerging characteristics of forest ecosystems at various stages of their development. The analysis offers an explanation for the importance of discriminating between the varied physical properties arising from the nexus of size and age, as well as highlighting the implications these ontogenetic changes have for commercial forestry and climate change. This important and timely summation of our knowledge base in this area, written by highly respected researchers, will be of huge interest, not only to researchers, but also to forest managers and silviculturists.

Utilization of the Southern Pines

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Publisher :
ISBN 13 :
Total Pages : 752 pages
Book Rating : 4.X/5 (3 download)

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Book Synopsis Utilization of the Southern Pines by : Peter Koch

Download or read book Utilization of the Southern Pines written by Peter Koch and published by . This book was released on 1972 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

U.S. Forest Service Research Paper FPL.

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Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis U.S. Forest Service Research Paper FPL. by : Forest Products Laboratory (U.S.)

Download or read book U.S. Forest Service Research Paper FPL. written by Forest Products Laboratory (U.S.) and published by . This book was released on 1966 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Agriculture Handbook

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Publisher :
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Agriculture Handbook by :

Download or read book Agriculture Handbook written by and published by . This book was released on 1997 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.

U.S. Forest Service Research Paper FPL.

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Publisher :
ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis U.S. Forest Service Research Paper FPL. by :

Download or read book U.S. Forest Service Research Paper FPL. written by and published by . This book was released on 1965 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

General Technical Report SE

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Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis General Technical Report SE by :

Download or read book General Technical Report SE written by and published by . This book was released on 1991 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: