Betula alleghaniensis / Aboveground biomass

North American taxa group: Betulaceae 0.50–0.59 spg (Table 5)

Aboveground biomassBetula alleghaniensis · BetulaceaeUnited StatesmixedRead from the original paper

Equation

As printed (Table 5 caption, p. 140)

ln(biomass) = β0 + β1 ln(diameter)

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

Aboveground biomass = exp(-1.8096 + 2.3480 * ln(D))

D: Diameter at breast height (1.3 m), cm

Fitted for the Betulaceae 0.50–0.59 spg taxon, which held only yellow birch equations, so it is recorded as a species fit. Median specific gravity of the group: 0.55. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'.

Source

Chojnacky, D.C., Heath, L.S., Jenkins, J.C. (2014). Updated generalized biomass equations for North American tree species. Forestry, 87(1), 129–151.

doi:10.1093/forestry/cpt053 · Open access · copy we read

Betulaceae 0.50–0.59 spg 0.55 −1.8096 2.3480 134 16 dbh 3–70 0.81

Equation · Table 5 row, p. 140

Betulaceae B. alleghaniensis Birch, yellow 371 0.55

Taxon · Table 3, p. 136

we did not include a correction (Baskerville, 1972) for underestimation

Correction factor · Methods, p. 139

DBH range: 3–70 cm
R²: 0.81
Method: Weighted regression of ln(biomass) on ln(dbh) fitted to 134 pseudodata points generated from 16 published equations; no back-transform correction
Where: United States (equations compiled from US and Canadian studies)
Last checked: 2026-11-03

Calculate

DBH (cm)

481

Aboveground biomass (kg)

226

Carbon (kg), ×0.47

829

CO₂e (kg), ×44/12

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%.

Inputs	Expected	We get	From
D = 30	481	481	Computed from the printed form computed from the published form at dbh = 30 cm

Report a problem with this equation · JSON

White birch aboveground biomass from D only (MS-2) (sum of components, Table 5) · Dong et al. 2018 · DBH
White birch aboveground biomass from D and H (MS-3) (sum of components, Table 6) · Dong et al. 2018 · DBH + Height
Canadian national equation, grey birch, dbh and height (sum of wood, bark, branches, foliage; Table 4) · Lambert et al. 2005 · DBH + Height
Canadian national equation, grey birch, dbh only (sum of wood, bark, branches, foliage; Table 3) · Lambert et al. 2005 · DBH
Canadian national equation, white birch, dbh and height (sum of wood, bark, branches, foliage; Table 4) · Lambert et al. 2005 · DBH + Height
Canadian national equation, white birch, dbh only (sum of wood, bark, branches, foliage; Table 3) · Lambert et al. 2005 · DBH
Canadian national equation, yellow birch, dbh and height (sum of wood, bark, branches, foliage; Table 4) · Lambert et al. 2005 · DBH + Height
Canadian national equation, yellow birch, dbh only (sum of wood, bark, branches, foliage; Table 3) · Lambert et al. 2005 · DBH
North American taxa group: Abies ≥ 0.35 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Abies < 0.35 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Aceraceae ≥ 0.50 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Aceraceae < 0.50 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Betulaceae 0.40–0.49 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Betulaceae ≥ 0.60 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Betulaceae < 0.40 spg (Table 5) · same paper · Aboveground biomass
North American taxa group: Fabaceae/Juglandaceae, Carya (Table 5) · same paper · Aboveground biomass

Compare these curves

North American taxa group: Betulaceae 0.50–0.59 spg (Table 5)

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