Nagham Allan*(1), Emad Koubaily(1) and Wael Ali(1)
(1). Department of Forestry and Ecology, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(*Corresponding author: Nagham Allan, E-mail: naghamallan5@gmail.com.)
Received: 7/12/2021 Accepted: 22/02/2022
Abstract:
This research was carried out in Al Rastin -Al Bahloulyia site – Lattakia for the year 2020-2021 to evaluate growth and prouductivity of Pinus brutia Ten.& Eucalyptus camaldulensis Dehn.(mixed plantation) at age of 40 years. 15 circular plots were taken, the area of each plot was 400 m2. The following parameters were taken for each plot: trees number, diameter at breast height, crown width trees and 37 trees height (16 trees of Pinus brutia Ten. and 21 trees of Eucalyptus camaldulensis ). Form factor, wood stock, mean annual increment and basal area were estimated. Power equations was used to estimate total biomass. The results showed that the mean of form factor of Pinus brutia Ten. was 0.49 and 0.48 for Eucalyptus camaldulensis Dehn. and the mean wood stock value reached to (122.81, 87.93) m3/ha for pinus brutia Ten.& Eucalyptus camaldulensis Dehn. respectively with tree density (296,223) trees/ha. The mean annual increment was 3.07 m3/ha/yr for Pinus brutia Ten. and 2.19 m3/ha/yr for Eucalyptus camaldulensis Dehn. The mean biomass of Pinus brutia Ten.& Eucalyptus camaldulensis Dehn. was (99.03,78.98)ton/ha. The results of this study can help foresters to evaluate growth and prouductivity of mixed forests similar to the study area to improve and benefit from this productivity to invest it in the future.
Key words: mixed forest, biomass, wood stock, Pinus brutia, Eucalyptus camaldulensis.
Full paper in Arabic: pdf