Testing accuracy of butt log volume estimated by using seven formulas for calibrain pine (Pinus brutia Ten)
Other Title(s)
اختبار دقت حجم الجذوع المقذرة باستخدام 7 معادلات لأشجار الصنوبر البروتي (Pinus brutia Ten)
Author
Source
Mesopotamia Journal of Agriculture
Issue
Vol. 45, Issue 3 (30 Sep. 2017), pp.321-329, 9 p.
Publisher
University of Mosul College of Agriculture and Forestry
Publication Date
2017-09-30
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Abstract EN
The observed volumes obtained by several volume calculation methods for the butt log volume of Calibrain pine (Pinus brutia Ten.).
These butt logs were compared with true volume of each butt log which was determined by aggregating the volumes of measured short (1m) using Smalian’s formula.
150 of sample trees were measured into Zaweta and Atrush districts of Dohuk province.
The sample trees presented diameter at breast height from 13.9 to 37.6 cm.
and total height from 8 - 19.2 meter.
The volume of each butt log was estimated by using (Smalian’s, Huber’s, Newton’s, Hossfeld’s, Bruce’s, Sorenson’s and Centroid method).
The accuracy of these seven procedures was analyzed considering volume of butt log lengths 6-m.
The results showed that Centroid method was superior for all volumes.
As expected, Sorenson formula was the procedure with the worst performance.
American Psychological Association (APA)
Ubayd, Muhammad Hidayat. 2017. Testing accuracy of butt log volume estimated by using seven formulas for calibrain pine (Pinus brutia Ten). Mesopotamia Journal of Agriculture،Vol. 45, no. 3, pp.321-329.
https://search.emarefa.net/detail/BIM-958448
Modern Language Association (MLA)
Ubayd, Muhammad Hidayat. Testing accuracy of butt log volume estimated by using seven formulas for calibrain pine (Pinus brutia Ten). Mesopotamia Journal of Agriculture Vol. 45, no. 3 (Sep. 2017), pp.321-329.
https://search.emarefa.net/detail/BIM-958448
American Medical Association (AMA)
Ubayd, Muhammad Hidayat. Testing accuracy of butt log volume estimated by using seven formulas for calibrain pine (Pinus brutia Ten). Mesopotamia Journal of Agriculture. 2017. Vol. 45, no. 3, pp.321-329.
https://search.emarefa.net/detail/BIM-958448
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 328-329
Record ID
BIM-958448