Wood Variation: Its Causes and Control

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Wood Variation: Its Causes and Control

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.

Table of contents :
Front Matter....Pages I-XV
Wood Variation and Wood Properties....Pages 1-32
The Effect of Provenance Variation and Exotic Plantations on Wood Properties....Pages 33-71
Variation Within and Among Trees....Pages 72-131
Wood Property Variation as Related to Tree Form and Reaction Wood....Pages 132-156
The Effect of Growth Rate on Wood Properties....Pages 157-188
Wood Properties Affected by Environmental, Biological, and Other External Agencies....Pages 189-217
The Effect of Silvicultural Practices on Wood Properties....Pages 218-248
Control of Wood Properties by Breeding....Pages 249-290
Future Importance of Knowing and Manipulating Wood Variability....Pages 291-310
Back Matter....Pages 311-363