Çerkeş orman işletme şefliği doğal ve plantasyon genç sarıçam bireylerinin toprak üstü ve toprak altı biyokütle miktarlarının belirlenmesi

Abstract

The aim of this study is to determine the belowground and aboveground biomass developments of natural and plantation stands of young Scots pines (Pinus sylvestris) in ÇerkeĢ Forest Enterprise, ÇerkeĢ Planning Unit. To prepare fresh and oven dry biomass tables, 20 individuals having different diameters at breast-height (between 5-26 cm) were chosen from each group. Diameters at breast height and tree heights of chosen sample trees were measured and sample trees were removed with their roots. Using the data obtained from those individuals, the fresh biomass values of tree components (stem wood, stem bark, branch wood, branch bark, needle, stump wood, stump bark, root wood, root bark) were calculated. Stems divided into 2,05 m-long sections from base to top and all sections’ diameters were measured form both ends. 5 cm thick sample disks were taken from the middle of each section. Using these data, section and whole tree volumes were modeled. Samples from each element were brought to laboratory and dry masses were calculated. To construct single entry biomass tables, appropriate functions that represent best relationships between data form trees and diameter and breast height were chosen. To construct double entry biomass tables, appropriate functions that represent best relationships between data form trees and diameter and breast height and tree height were chosen.