This book was written to help the forest industry assess wood quality by using non-destructive samples taken from specific points within a tree. It is the first compilation of research data on sampling of eucalypts, describing new methods and tools for rapid and cost-effective analysis.
The book provides information needed to design a sampling program, obtain and process wood samples, and shows how to relate the data to an average tree value.
Preliminary model for the estimation of whole-tree property values from a single sampling point
Description of within-tree variation of various properties in several eucalypt species
Discussion of issues involved in modelling property variation; and outlines of sampling procedures
Summary of existing knowledge as literature reviews
Contributors
Preface
Introduction
Chapter 1. Wood properties of interest in plantation productivity
Productivity
Wood quality
Development of sampling strategies
Wood density
Fibre dimensions
Microfibril angle
Vessel size and frequency
Pulp yield
Emerging technologies for wood quality determination
Chapter 2. Sampling - purpose, accuracy and cost
Methods of sampling
Reasons for sampling
Accuracy and sample size
Sample size required for different traits
Relative costs of sampling methods and analyses
Chapter 3. Models of within-tree variation
Conceptual patterns of variation
Developing mathematical models
Influence of sampling strategy
Applying the model
Overview
Chapter 4. Within-tree variation and sampling point correlations
Density
Fibre dimensions
Vessel coverage
Near-infrared predicted kraft pulp yield
Physiological sources of variation
Chapter 5. Sampling protocol
Necessary site data
Getting the sample
Sample storage
Chapter 6. Tools for rapid and cost-effective analysis of wood properties
SilviScan-1
SilviScan-2
Near-infrared spectroscopy for pulp yield
Appendices
References
Glossary
It will be of value to tree breeders, silviculturists, anatomists and wood quality managers.
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