The allometric equation for calculating the tree biomass is site specific for particular tree species. If allometric equation is not available (e.g. Toona ciliata for Pantnagar Uttarakhand, India) then how it will estimate non-destructively.
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Establish the allometric equation or use a similar habitus species allometric equation to get the biomass volume and correct it by the density.
I would suggest you to acesses this site: The Global Wood Density (GWD) database (http://hdl.handle.net/10255/dryad.235 (Chave et al., 2009).
I think this data could help you.
Best regards
The tree biomass and Carbon can be calculated by non destructive method as follows:
You can apply Volume equation method, in Volume equation method Volume equation is depend on Diameter and Height of trees
AGB = V x WD x BEF
Where: AGB = Above Ground Biomass/ Standing Biomass
V = Volume of tree, WD = Wood Density, BEF = Biomass Expansion Factor
For example Volume equation of Acacia catechu (Khair tree in India)as developed by Forest Survey of India (FSI), Dehrdun is being applied as follws:
V = 0.043849-0.552735 D+2.952386 D2+0.334508 D2H (G)
n = 46, R2 = 0.874
n = Total number of sample trees were used for deriving volume equation
R2 = Co-efficient of determination; L = Local volume equation;
G = General volume equation; R =Regional volume equation;
V = Volume of tree
D = Diameter of tree at breast level
H = Height of tree
Wood density
-Wood density is the oven dry mass per unit of green volume (kg/m3)
Biomass Expansion Factor (BEF)
-Adjusted mean biomass (volume) expansion factor for the region/ country
Finally calculate Above Ground Biomass
AGB = V x WD x BEF
Below Ground Biomass (BGB)
BGB = Above Ground Volume x Ratio
Gross biomass = AGB + BGB
Carbon Seq. = Gross Biomass x CCF
CCF = Carbon Conversion Factor
Carbon Sequestration (generally Carbon in 46 to 55% of weight or 50%)