Non-Destructive Method for Estimating Log Volume for Melia Azedarach L. Trees in Erbil-Iraqi Kurdistan Region
AbstractThe 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.
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.
Copyright (c) 2016 Talat M. Amin
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY-NC-SA 4.0] that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).