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Stem diameter at breast height (D1.3m) and tree height (H) are commonly used measures of tree growth. Based on correlation analysis between biomass of stem, branches and leaves and stem diameter and height of tree we can identify allometric equation for predicting biomass and carbon sequestration of the vegetation. This study was carried out in the natural forests of Me Linh Station for biodiversity to develop allometric equation between biomass and diameter at breast height and height of tree. The study results indicated that twenty tree species dominate in natural forests in Me Linh Station for Biodiversity and they were selected for sampling. Through the 80 established linear equation models for above and below –ground biomass (AGB and BGB), we found that the biomass of tree species in Me Linh Station for Biodiversity were closely correlated with the diameter factor (R>0.902) and not clearly correlated with the height (correlation coefficient = 0.5498, R< 0.549). Four regression equations were established, including: Pstem = 25.3051*(D1.3m) (R : 9.661); Pbranch = 12.1043*( D1.3m) (R : 9.8); Pleaves = 9.446*(D1.3m) (R : 0.9363); P total biomass of forest = 25.882*D with R: 0.8561) for estimating biomass and carbon sequestration of natural forest at the research site.

journal of vietnamese environment

Allometric relations between biomass and diameter at breast height and height of tree in natural forests at Me Linh Station for Biodiversity, Vinh Phuc Province, Vietnam