Considering costs and revenues in long‐term forecasts of timber yields
作者:
Torgny Lind,
Ulf Söderberg,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1994)
卷期:
Volume 9,
issue 1-4
页码: 397-404
ISSN:0282-7581
年代: 1994
DOI:10.1080/02827589409382857
出版商: Taylor & Francis Group
关键词: Assortments;forest management planning;long‐term forecasting;optimization.
数据来源: Taylor
摘要:
In Sweden, long‐term forecasts of timber yields have traditionally dealt with the production of timber, without consideration of costs and revenues. A system for long‐term forecasting (HUGIN) has been further developed with incorporation of calculations of costs for logging and silviculture together with revenues from timber and pulp wood. The forecasts of HUGIN are based on sample plot data from the Swedish National Forest Inventory. After the specification of alternative silviculture and logging programs in HUGIN, the user can study costs, revenues and number of man‐days for each program. By using quality functions and price lists, the HUGIN system calculates the highest possible revenue for the individual tree by optimizing the division into assortments. The HUGIN system will be improved further in the future to include calculations of road transport costs, improved quality functions and revenues from other forest resources than timber.
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