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Articles by Maarten Nieuwenhuis
Category : Research article
article id 543,
category
Research article
(2002).
The development and validation of pre-harvest inventory methodologies for timber procurement in Ireland.
Silva Fennica
vol.
36
no.
2
article id 543.
https://doi.org/10.14214/sf.543
Keywords:
pre-harvest inventory;
simulation;
dynamic programming;
value maximisation;
optimal crosscutting
Abstract |
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Author Info
This article describes the development and validation of a decision-support system for sawmill wood procurement, dealing specifically with the integration of the pre-harvest inventory procedures, site-specific dbh/height models and a generic taper equation, with a crosscutting simulator. The crosscutting simulation program faithfully mimics the process of cut-to-length harvesting and provides detailed information on the potential volume, logs count and diameter distributions for different log assortment specifications. Four data sets, consisting of a total of 4153 diameter and height measurements, were used in the validation process. The sites included two Sitka spruce clearfells, a Sitka spruce thinning and a Norway spruce clearfell. The evaluation process has shown that the developed decision-support system produced accurate results for a wide range of stand types, as long as sufficient large data sets were used, and that it provides the wood procurement manager of a sawmill with an efficient means of gaining a comprehensive insight into the yield potential of standing timber lots and, as such, represents a valuable aid to timber procurement and production planning.
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Nieuwenhuis,
University College Dublin, Dept. of Forestry, Belfield, Dublin 4, Ireland
E-mail:
maarten.nieuwenhuis@ucd.ie
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