بررسی آلومتری گونه درختی راش در منطقه جنگلی نوشهر و بهشهر

Allometric equations describing tree size-shape relationships for beech(Fagus orientalis Lipsky) in Caspian forests of northern Iran are presented. Diameter at breast height explained most of the variables such as aboveground stem and branches biomass. 58 In this project at first we measured and selected 8 trees as per our method. Afterwards we cut some pieces of bole and branches of these trees and measured them. Then we generized data to whole of other pieces of bole and branches. Regretion analyses of the dry weights of stem wood, stem bark, branches, total dry weight of bole and branches versus diameter at breast height were used to calculate regretion equations. The relationship between diameter at breast height and total aboveground biomass of tree was y = 0.1731x2.3 , R2 = 0.9925. Therefore biomass of (Fagus orientalis Lipsky) in Caspian forests was 69.34Mg ha (-1). Key words: Allometry, Aboveground biomass, Diameter at breast height, Fagus orientalis.

Keywords:

اندازه گیری , قطر برابر سینه , زیست توده , فاگوس اوریانتالیس