International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064


Downloads: 86

Research Paper | Ecology | Iran | Volume 4 Issue 5, May 2015


Modeling the Distribution of the Height of Chestnut Trees in the Forests of Gilan

Atefe Karimiyan Bahnemiry, Kambiz Taheri Abkenar, Hassan Pourbabaei, Mehrdad Mirzaie


Abstract: Variables of total height can be considered the main variables morphometric of forest trees. The purpose of this study was to investigate the probability distribution of the height of chestnut trees in the forests of Gilan province. In this study, 30 samples of dimensions 50 50 m as selectively were sampled and heights of 213 trees of chestnut trees were measured. Probability distribution function that investigated was beta, gamma, normal, lognormal and Weibull. Characteristics of each of the functions were estimated using the maximum likelihood method. In order to fit probability distribution functions that were studied, fitting chi-square and Kolmogorov-Smirnov was used. Kolmogorov-Smirnov test results showed that the beta distribution in compare to the other distribution of power is more explanation. So, is a suitable model for chestnut trees in the forests of Guilan.


Keywords: fitting test, Modeling, probability distribution, height, chestnut


Edition: Volume 4 Issue 5, May 2015,


Pages: 1095 - 1099


How to Cite this Article?

Atefe Karimiyan Bahnemiry, Kambiz Taheri Abkenar, Hassan Pourbabaei, Mehrdad Mirzaie, "Modeling the Distribution of the Height of Chestnut Trees in the Forests of Gilan", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=7051505, Volume 4 Issue 5, May 2015, 1095 - 1099

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