By P. W. West
In a hugely readable model, this publication describes the clinical rules that are used through the international to make sure quick, fit plantation progress. it really is written for a world-wide viewers, from forestry execs and scientists via to small plantation growers, to explain how plantations could be grown responsibly and profitably. the writer has been a woodland scientist for over 30 years.
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The remainder of this section will describe briefly some of the properties of wood which are important in determining its quality for industrial end uses. Only some of the more important properties are described; fuller discussion can be found in the texts just mentioned. To ensure that wood of appropriate quality is being produced in a plantation, its assessment in trees before they are felled is becoming increasingly important. Downes et al. (1997) have discussed in detail how this is done; although their book concentrates on eucalypts, its concepts will have application to many other plantation species.
This means that the wood will tend to contain an increasing proportion of less dense, juvenile wood. Yang and Waugh (1996a, b) found that logs from 19–33 year old plantation-grown eucalypts could be sawn to produce high-quality structural timber, but the average strength of the sawn boards was lower in younger trees; hence, it was slightly less valuable commercially. Bowyer et al. (2003) have discussed the variety of problems that the presence of juvenile wood can lead to when processing timber.
3 Wood Quality World markets for industrial wood (Sect. 1) are becoming increasingly discriminating of the quality of the wood that is sold to them. The principal industrial products produced from wood are (Bowyer et al. 2003): • Timber—this consists of boards sawn from logs which have been cut from tree stems. Timber has a multitude of uses, for furniture, flooring, panelling, framing, boxes, pallets, railway sleepers and many other things. When cut fresh from the log, wood contains a lot of water.