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Pakistan Journal of Biological Sciences

Year: 2005 | Volume: 8 | Issue: 9 | Page No.: 1228-1232
DOI: 10.3923/pjbs.2005.1228.1232
The Relationships between Diameter at Breast Height, Tree Height and Crown Diameter in Lebanon Cedars (Cedrus libani A. Rich.) of the Yavsan Mountain, Kahramanmaras, Turkey
Mahmut D. Avsar and Veysel Ayyildiz

Abstract: In this study, the relationships between height-Diameter at Breast Height (DBH), crown diameter-DBH and crown diameter-height were investigated in Lebanon cedars (Cedrus libani A. Rich.) of the Yavsan Mountain, Kahramanmaras. Six sample plots were selected from pure and mixed stands of Lebanon cedar and DBH, height and crown diameter were measured on Lebanon cedar trees, of which height was 5 m, in the sample plots. The regression analysis carried out on the data of 186 trees showed that there were statistically significant (p<0.0001) and strong (R2>0.50) relationships between DBH, height and crown diameter variables in Lebanon cedars. The strongest relationship determined was the crown diameter-DBH relationship (R2 = 0.72), followed by the height-DBH (R2 = 0.71) and crown diameter-height (R2 = 0.52) relationships, respectively. The results of the study indicate that the height-DBH and crown diameter-DBH relationships can be described by the power model, while the crown diameter-height relationship can be described by the S-curve model and heights and crown diameters can be estimated from DBH, of which measurement is easy, in Lebanon cedars of the study area.

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How to cite this article
Mahmut D. Avsar and Veysel Ayyildiz, 2005. The Relationships between Diameter at Breast Height, Tree Height and Crown Diameter in Lebanon Cedars (Cedrus libani A. Rich.) of the Yavsan Mountain, Kahramanmaras, Turkey. Pakistan Journal of Biological Sciences, 8: 1228-1232.

Keywords: crown diameter, tree height, diameter at breast height, Cedrus libani and regression analysis

REFERENCES
  • Yaltirik, F., 1993. Textbook of Dendrology I, Gymnospermae (Gymnosperms). 2nd Edn., Istanbul University, Istanbul

  • Evcimen, B.S., 1963. The economic importance, principles of yield and management of Turkey's cedar forests. Ministry of Agriculture, General Directorate of Forestry, Istanbul.

  • Boydak, M., 1996. Ecology and silviculture of cedar of Lebanon (Cedrus libani A. Rich.) and conservation of its natural forests. Ministry of Forestry, Ankara.

  • Caliskan, T., 1998. Report on fast-growing species. Proceedings of the Workshop on Evaluation of the Reforestation Activities Made with Fast-Growing Species and Activities to be Made, Dec. 8-9, Ankara, pp: 109-143.

  • Saatcioglu, F., 1976. Silviculture I, Biological Foundations and Principles of Silviculture. 2nd Edn., Istanbul University Faculty of Forestry, Publication No. 222, Istanbul

  • Kalipsiz, A., 1984. Dendrometry. Istanbul University, Faculty of Forestry, Istanbul, Turkey

  • Philip, M.S., 1994. Measuring Trees and Forests. 2nd Edn., CAB International, Cambridge, UK

  • Saracoglu, O., 1988. Increment and Growth in Fir Stands of the Black Sea Region. Istanbul University, Istanbul

  • Caliskan, A., 1991. Growth relationships and necessary silvicultural operations in scotch pine (Pinus sylvestris L.)-fir (Abies bornmulleriana Mattf.)-beech (Fagus orientalis Lipsky) mixed stands of buyukduz research forest, Karabuk. Ph.D. Thesis, Istanbul University, Institute of Science, Istanbul, Turkey.

  • Korkmaz, H., 2001. Geomorphology of the Kahramanmaras Basin. Kahramanmaras Governorship, Publications of Province Culture Directorate, Kahramanmaras

  • Kalipsiz, A., 1981. Statistical Methods. Istanbul University, Istanbul

  • Avery, T.E. and H.E. Burkhart, 1994. Forest Measurements. 4th Edn., McGraw-Hill, Inc., Singapore

  • Avsar, M.D., 2004. The relationships between diameter at breast height, tree height and crown diameter in Calabrian pines (Pinus brutia Ten.) of Baskonus Mountain, Kahramanmaras, Turkey. J. Biol. Sci., 4: 437-440.
    CrossRef    Direct Link    

  • Akalp, T., 1983. Simulation of Increment and Growth in Uneven-Aged Stands. Istanbul University, Faculty of Forestry, Istanbul, Turkey

  • Demirci, A. and A.U. Gul, 1993. Stand structure, increment and growth relationships of natural pure Calabrian pine stands in the Kizilirmak Basin. Proceedings of the International Symposium on Pinus brutia Ten., Oct. 18-23, Marmaris, pp: 541-548.

  • Zhang, L., 1997. Cross-validation of non-linear growth functions for modelling tree height-diameter relationships. Ann. Bot., 79: 251-257.

  • Peng, C., 1999. Nonlinear Height-Diameter Models for Nine Boreal Forest Tree Species in Ontario. Ontario Forest Research Institute, Ontario

  • Peng, C., L. Zhang and J. Liu, 2001. Developing and validating nonlinear height-diameter models for major tree species of Ontario`s boreal forests. North. J. Applied For., 18: 87-94.
    Direct Link    

  • Colbert, K.C., D.R. Larsen and J.R. Lootens, 2002. Height-diameter equations for thirteen midwestern bottomland hardwood species. North. J. Applied For., 19: 171-176.
    Direct Link    

  • Sun, O., 1977. Growth Model for Simulation of a Calabrian Pine (P. brutia Ten.) Tree. Forestry Research Institute, Ankara, Turkey

  • Gering, L.R. and D.M. May, 1995. The relationship of diameter at breast height and crown diameter for four species groups in Hardin County, Tennessee. South. J. Applied For., 19: 177-181.
    Direct Link    

  • Hasenauer, H., 1997. Dimensional relationships of open-grown trees in Austria. For. Ecol. Manage., 96: 197-206.
    CrossRef    

  • Bragg, D.C., 2001. A local basal area adjustment for crown width prediction. North. J. Applied For., 18: 22-28.
    Direct Link    

  • Francis, J.K., 1988. The Relationship of Bole Diameters and Crown Widths of Seven Bottomland Hardwood Species. Southern Forest Experiment Station, USA

  • Foli, E.G., D. Alder, H.G. Miller and M.D. Swaine, 2003. Modelling growing space requirements for some tropical forest tree species. For. Ecol. Manage., 173: 79-88.
    Direct Link    

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