Predicting Lumber Volume and Value of Young-growth True Firs PDF Download
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Author: Susan Ernst
Publisher:
ISBN:
Category : Fir
Languages : en
Pages : 20
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Book Description
Author: Susan Ernst
Publisher:
ISBN:
Category : Fir
Languages : en
Pages : 20
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Book Description
Author: Susan Ernst
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 14
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Book Description
Author: Susan Ernst
Publisher:
ISBN:
Category : Fir
Languages : en
Pages : 114
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Book Description
Both public agencies and private industry are concerned with how timber is appraised for sale. An important part of the appraisal is estimating the lumber volume and value of standing timber. A system which accurately estimates the volume and value of young-growth true fir is needed. This study uses existing data on three true fir species (red fir; Abies magnifica var. shastensis Lemm., white fir; Abies concolor (Dougl.)Lindl., and grand fir; Abies grandis (Gord. and Glend.)Lindl.) in northern California, southern Oregon, and Idaho to develop equations which predict lumber volume and value. Lumber volume was originally separated into gross volume, defective volume, and recovery. Defective volume could not be modeled with the information available. Recovery and gross volume were modeled separately. Two methods were used to model lumber value, the first predicted the volume of lumber found in each of three grades, and the second predicted an indexed value developed from the relative prices of the three grades. The final equations which accurately predict lumber volume and value for both mill specific and non-mill specific users are given. Accuracy and bias statistics are also shown from testing on an independent data set.
Author: Janet K. Ayer Sachet
Publisher:
ISBN:
Category :
Languages : en
Pages : 656
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Author: J. A. Kendall Snell
Publisher:
ISBN:
Category : Biomass energy
Languages : en
Pages : 856
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Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 40
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Author: Pacific Northwest Research Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 80
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Author:
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 32
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Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 418
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