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Research Article

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
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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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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.

DOI: 10.3923/pjbs.2005.1228.1232


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