Hassan Ali*(1) Tharwat Ibrahim (2) , and Mahmoud asmar (3)
(1). General commission for the administration and development of Al-Ghab, Al Ghab, Syria.
(2). Department of Renewable Natural Resources and Environment, Faculty of Agriculture, Damascus University.
(3). Forest Department in Dreikish, Tartous, Syria.
(*Corresponding author: Dr.Hassan Ali, E-mail: hso414516@gmail.com)
Received: 9/11/2023 Accepted: 28/04/2023
Abstract:
Estimating forest wood stocks is necessary and important for developing sustainable management plans for these forests. Form factor is one of the important factors to determine the exact volume of trees. This research was carried out in 2023 with the aim of calculating the true form factor and the natural and artificial form factors of Pinus brutia, then comparing them statistically at the 95% level of significance to determine the appropriate alternative to the true form factor, 10 trees of the Pinus brutia were randomly selected so that they were representative of all diameter classes present in the study area. Before cutting these trees, the diameter and height of each tree were measured, then these trees were cut, and the diameter of these trees was measured at a height of 0.1 and 0.5 of their total height. To calculate the actual volume, each tree was cut into small pieces 2-meter and then the diameter of the beginning and end of each piece was measured. Then the real form factor and the artificial (Non-Natural) and natural form factors were calculated using the appropriate equations. The results showed that the average real form factor, artificial form factor, and natural form factor were 0.54, 0.55, and 0.52, respectively. The results also indicated that there were no significant and statistical differences between the form factors studied, and therefore the natural and artificial form factors can be considered realistic alternatives to the real form factor.
Keywords: Real form factor, Non-Natural (Artificial) form factor, Natural form factor, Pinus brutia.
Full paper in Arabic: pdf