Betula platyphylla / Root biomass

White birch root biomass from D and H (MS-3) (Table 6)

Root biomassBetula platyphylla · BetulaceaeChinanaturalRead from the original paper

Equation

As printed (Table 6 (MS-3), White birch, root row; model form Eq. (14) structure)

Wr = e^β10 · D^β11 · H^β12; White birch | Root | -3.2954 | 1.9718 | 0.3931

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

Root biomass = exp(-3.2954 + 1.9718 * ln(D) + 0.3931 * ln(H))

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

White birch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only).

Source

Dong, L., Zhang, L., & Li, F. (2018). Additive Biomass Equations Based on Different Dendrometric Variables for Two Dominant Species (Larix gmelini Rupr. and Betula platyphylla Suk.) in Natural Forests in the Eastern Daxing'an Mountains, Northeast China. Forests, 9(5), 261.

doi:10.3390/f9050261 · Open access · copy we read

138 Dahurian larch trees and 108 white birch trees were destructively sampled

Trees measured · Section 2.2

Trees measured: 108
DBH range: 1.4–20.5 cm
Height range: 3.1–21 m
Method: seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2
Where: Eastern Daxing'an Mountains, Heilongjiang, northeast China
Last checked: 2026-11-02

Calculate

DBH (cm)Height (m)

Height from

1.07

Root biomass (kg)

0.504

Carbon (kg), ×0.47

1.85

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 = 4, H = 5	1.07	1.07	Computed from the printed form computed from the published form (coefficients as printed)
D = 10, H = 11	8.91	8.91	Computed from the printed form computed from the published form (coefficients as printed)
D = 18, H = 17	33.7	33.7	Computed from the printed form computed from the published form (coefficients as printed)

Report a problem with this equation · JSON

White birch root biomass from D only (MS-2) (Table 5) · Dong et al. 2018 · DBH
Birch total root biomass, additive system (coarse + medium + fine), Heilongjiang site · Pan & Wang 2022 · DBH + Height
Birch total root biomass, additive system (coarse + medium + fine), Jilin site · Pan & Wang 2022 · DBH + Height
Birch total root biomass, additive system (coarse + medium + fine), Liaoning site · Pan & Wang 2022 · DBH + Height
Birch total root biomass, disaggregated model (Eq. 24), Heilongjiang site · Pan & Wang 2022 · DBH + Height
Birch total root biomass, disaggregated model (Eq. 24), Jilin site · Pan & Wang 2022 · DBH + Height
Birch total root biomass, disaggregated model (Eq. 24), Liaoning site · Pan & Wang 2022 · DBH + Height
Betula pendula, Germany, belowground biomass from DBH (Eq. 4, Tab. 1) · Röhling et al. 2019 · DBH
White birch aboveground biomass from D only (MS-2) (sum of components, Table 5) · same paper · Aboveground biomass
White birch branch biomass from D only (MS-2) (Table 5) · same paper · Branch biomass
White birch foliage biomass from D only (MS-2) (Table 5) · same paper · Foliage biomass
White birch root biomass from D only (MS-2) (Table 5) · same paper · Root biomass
White birch stem biomass from D only (MS-2) (Table 5) · same paper · Stem biomass
White birch total (above + below ground) biomass from D only (MS-2) (sum of components, Table 5) · same paper · Total biomass
White birch aboveground biomass from D and H (MS-3) (sum of components, Table 6) · same paper · Aboveground biomass
White birch branch biomass from D and H (MS-3) (Table 6) · same paper · Branch biomass

Compare these curves

White birch root biomass from D and H (MS-3) (Table 6)

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