Fagus sylvatica / Stem biomass

Beech saplings on dry sites, stem with bark dry biomass from root-collar diameter (Table 2)

Stem biomassFagus sylvatica · FagaceaeGermany, SwitzerlandnaturalRead from the original paper

Equation

As printed (Table 2, ST Dry row)

ST Dry a 0.019 b 2.199 Adj-R² 0.71 N 20

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

Stem biomass = 0.019 * DRC^2.199

DRC: Root collar / stem base diameter, cm

Dry biomass in kg. Adjusted R2 as printed: 0.71. Saplings only; DRC measured at 5 cm above ground, sapling DRC range 1.1-4.1 cm.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added).

Source

Chakraborty, T., Saha, S., & Reif, A. (2016). Biomass equations for European beech growing on dry sites. iForest, 9(5), 751-757.

doi:10.3832/ifor1881-009 · Open access · copy we read

N 20

Trees measured · Table 2, ST Dry row

Trees measured: 20
Method: power function regression, biomass = a * diameter^b (dry mass)
Where: Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland
Last checked: 2026-11-02

Calculate

Root collar diameter (cm)

0.0463

Stem biomass (kg)

0.0218

Carbon (kg), ×0.47

0.0799

CO₂e (kg), ×44/12

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
DRC = 1.5	0.0463	0.0463	Computed from the printed form computed from the published coefficients
DRC = 2.5	0.143	0.143	Computed from the printed form computed from the published coefficients
DRC = 3.5	0.299	0.299	Computed from the printed form computed from the published coefficients

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Beech on dry sites, stem with bark dry biomass from DBH (Table 3) · Chakraborty et al. 2016 · DBH
Fagus sylvatica stem with bark biomass (Table 2) · Ruiz-Peinado et al. 2012 · DBH + Height
Beech on dry sites, total aboveground dry biomass from DBH (Table 3) · same paper · Aboveground biomass
Beech on dry sites, branch dry biomass including foliage from DBH (Table 3) · same paper · Branch biomass
Beech on dry sites, stem with bark dry biomass from DBH (Table 3) · same paper · Stem biomass
Beech saplings on dry sites, total aboveground dry biomass from root-collar diameter (Table 2) · same paper · Aboveground biomass
Beech saplings on dry sites, branch dry biomass including foliage from root-collar diameter (Table 2) · same paper · Branch biomass

Compare these curves

Beech saplings on dry sites, stem with bark dry biomass from root-collar diameter (Table 2)

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