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PRUNESIM users guide.Author(s): R.D. Fight; J.M. Cahill; T.A. Snellgrove; T.D. Fahey
Source: Gen. Tech. Rep. PNW-GTR-209. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p
Publication Series: General Technical Report (GTR)
Station: Pacific Northwest Research Station
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DescriptionPRUNE-SIM is a spreadsheet template (program) that allows users to simulate a financial analysis of pruning coast Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii). The program estimates the increase in product value resulting from pruning the butt 17-foot log. Product recovery information is based on actual mill experience with pruned and unpruned logs for both sawn and peeled products. Users must supply tree descriptions from sources of growth and yield information and product prices. The program calculates the difference in value for trees and stands with and without pruning. The present value of this difference represents the maximum amount that could be spent on pruning without reducing the rate of return on the investment below the specified rate. The LOTUS 1-2-3 spreadsheet program was used to develop PRUNE-SIM. The user needs a basic knowledge of spreadsheets to use this program.
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CitationFight, R.D.; Cahill, J.M.; Snellgrove, T.A.; Fahey, T.D. 1987. PRUNESIM users guide. Gen. Tech. Rep. PNW-GTR-209. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p
KeywordsSimulation, pruning, Douglas-fir (coast), forest product values, product recovery
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