Estimation of tree biomass and carbon stock in the Tangkoko Nature Reserve, North Sulawesi

Abstract The objective of this study is to tree biomass and forest carbon stocks contained in the Tangkoko Nature Reserve (TNR) North Sulawesi. Phylogenetic diversity was analysed based on species composition weighted by aboveground biomass. A stratified systematic sampling used across transect lines. Field measurements follow method described SNI 7724:2019 ground-based accounting. Based allometric approach, produces a quantity 255.45 Mg.ha −1 total estimation consisting 201.14 AGB 54.31 BGB. standard approach C-stock calculation (i.e. 47% 50% soil organic biomass) results quantities 94.53 27.15 respectively). importance traits for should be considered initiatives reforestation offsetting.