Compatible stem volume and taper equations for Brutian pine, Cedar of Lebanon, and Cilicica fir in Turkey |
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| Authors: | John R Brooks Lichun Jiang Ramazan Ozelik |
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| Institution: | aDivision of Forestry, West Virginia University, 322 Percival Hall, P.O. Box 6125, Morgantown, WV 26506-6125, United States;bCollege of Forestry, Northeast Forestry University, 26 Hexing Rd., Donglin District, Harbin, Heilongjiang 150040, China;cFaculty of Forestry, Süleyman Demirel University, East Campus, 32260 Isparta, Turkey |
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| Abstract: | Compatible segmented taper and volume functions were developed for Brutian pine, Cedar of Lebanon, and Cilicica fir in Turkey. The proposed models generally performed better for the whole tree, especially for Cilicica fir. Average diameter prediction error was less than 2.2 cm and average volume error was less than 0.009 m3. The proposed models provide needed merchantable stem volume and diameter estimates to any point in the bole based on the 10 relative height classes examined for the three species. Model estimates compared well to existing volume tables currently employed for these three important commercial species. |
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| Keywords: | Segmented models Taper and volume Pinus brutia Cedrus libani Abies cilicica |
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