Tree Allometrics

Equations / Aboveground biomass

Cryptomeria japonica Generalized aboveground total (log10, Table 4)

Aboveground biomassCryptomeria japonica · CupressaceaeSouth KoreaplantationRead from the original paper
Photo of Cryptomeria japonica
© Marco Mussita · CC BY · iNaturalist
Equation

As printed (Materials and Methods 2)

log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]

In this library's units, ready to compute (kg)

Aboveground biomass = 10^(-0.3972 + 1.9041 * log10(D))
D
Diameter at breast height (1.3 m), cm

log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Total includes stem, branch, foliage and cone biomass (Table 3 components). Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given.

Source
Generalized equations: Aboveground total (kg) -0.3972 1.9041 0.82 0.001
Equation · Table 4
5본을 선정하였다
Trees measured · Materials and Methods 2 (5 felled trees per stand density)
Trees measured
10
R²
0.82
Method
log10-log10 least-squares regression (SAS Proc Reg)
Where
Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea
Last checked
2026-11-02
Calculate
120.3
Aboveground biomass (kg)
56.52
Carbon (kg), ×0.47
207.2
CO₂e (kg), ×44/12
0100200300400500510152025303540DBH (cm)Aboveground biomass (kg)Aboveground biomass

Shaded: the DBH range the model was fitted on. Other inputs held at the values above.

Checks this equation passes

On every build, the library's form and the paper's own form (in its units) must both give these values within 1%.

InputsExpectedWe getFrom
D = 20120.3120.3Computed from the printed form
computed from the Table 4 coefficients
D = 35349349Computed from the printed form
computed from the Table 4 coefficients

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