ALLOMETRIC
EQUATIONS FOR ESTIMATING THE TOTAL BIOMASS AND CARBON STOCK IN PARRING BAMBOO (Gigantochloa
atter) FROM COMMUNITY FOREST
Baharuddin1
and Muhammad Daud2
1)
Faculty of Forestry, Hasanuddin
University
2) Forestry Department, Faculty of Agriculture, Makassar Muhammadiyah University
2) Forestry Department, Faculty of Agriculture, Makassar Muhammadiyah University
email:mdaudhammasa@gmail.com
ABSTRACT
Allometric equations can be used to
estimate the biomass and carbon stock of forests. However, so far the equations
for bamboo forests have not been developed in sufficient detail. In this study,
allometric equations are presented based on the commercial species was parring
bamboo from community forest. The data were collected in bamboo community
forest, Tanralili Subdistric, Maros Regency, South Sulawesi, Indonesia. The number of bamboos sampled in this research
were 60 samples where 30 samples used to make allometric model and 30 samples
for model validation. Destructive sampling was used to collect the samples where
diameter at breast height (D) was used as predictors for dry weight of total biomass
(W) and carbon stock (CS). Model comparison and selection were based on average deviation, slope coefficient of the regression, and
paired t-test and coefficients of determination (R2). Fixed carbon of parring bamboo was determined
based on ASTM D-3175. Validation model used to test the realibility of allometric
equation model to prediction of the amount biomass in parring bamboo. The results showed that the fix carbon in parring
bamboo was 49,08%. Allometric
equation model can be used to predict biomass and carbon stock and in stem, twigs,
leaves and total part of bamboo except in root. Based
on statistical indicators, the most suitable allometric
equiation model forest estimating the amount of biomass in parring bamboo was W=
0,348D1.830 and CS = 0.171 D1.830. This equation was reliable for estimating the biomass and
carbon stock parring
bamboo from comunity forests.
