Non-Destructive Method for Estimating Log Volume for Melia Azedarach L. Trees in Erbil-Iraqi Kurdistan Region

  • Talat M. Amin College of Agriculture, Salahaddin University, Kurdistan Region.
Keywords: Erbil of Iraq, melia azedarach, volume table.


The accuracy of four traditional formulas (Smalian, Huber, Bruce and Newton) to calculate log volumes was compared and tested against volumes determined by the water-displacement technique (xylometer). 150 standing trees were measured in a Sami Abd-Alrahman Plantation Park in Erbil governorate on 1 May, 2012. The accuracy of these four procedures was analyzed considering merchantable outside bark volumes of logs of large, mid-and small diameter. The results showed that Newton’s formula was superior for all volumes and log lengths considered. Thus, Newton’s formula could be used in the majority of circumstances for log lengths of Melia azedarach trees. Applying the Newton formula to the tree volumes, DBH and height presented the best fit regression equation which for use in predicting the log volume of Melia azedarach trees in Erbil Governorate.


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Author Biography

Talat M. Amin, College of Agriculture, Salahaddin University, Kurdistan Region.
College of Agriculture


Adhikari, M., 2005. A Non-destructive Approach for Quantitative Assessment of Tree Resources outside the Forest, Ph.D., International institute for GEO- information, Netherlands.

Amin, T., 2010. Study on Tree Biometry Tables and Relationships for Quercus aegilops L. Growing Naturally in Erbil, M.Sc. University of Sallahalddin, Iraq.

Bruce, D., 1982. Butt log volume estimators. Forest Sci. 28(3), pp.489-503.

Chaturvedy, A. and Khanna, L., 2000. Forest Mensuration and Biometrics. 3rd ed. Khanna Bandhu, Dehradun, India.

Cris, B., 2006. Forest Measurement and Modeling. Australian National University.

Filho, A., Machado, S. and Carneiro, M, 2000. Testing accuracy of log volume calculation procedures against water displacement techniques (xylometer). Canadian Journal of Forest Research, 30(6), pp.990-997.

Hakki Y., 1999. Comparison of the Centroid Method and Four Standard Formulas for Estimating Log Volumes. Tr. J. of Agriculture and Forestry, 23, pp.597-602.

Ozcelik, R., Wiant, H. and Brooks, J., 2006. Estimating log volumes of three tree species in Turkey by six formulae. Forest Products Journal, 56(11/12), pp.84-86.

How to Cite
Amin, T. M. (2014) “Non-Destructive Method for Estimating Log Volume for Melia Azedarach L. Trees in Erbil-Iraqi Kurdistan Region”, ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY, 2(2), pp. 32-36. doi: 10.14500/aro.10027.