Quercus pyrenaica / Root biomass
Quercus pyrenaica root biomass (Table 2)
Root biomassQuercus pyrenaica · FagaceaeSpainmixedRead from the original paper
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Equation
As printed (Table 2, Quercus pyrenaica, Roots row)
Wr = 0.143 · d²
In this library's units, ready to compute (kg)
Root biomass = 0.143 * D^2D- Diameter at breast height (1.3 m), cm
Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added.
Source
doi:10.5424/fs/2112211-02193 · Open access · copy we read
Quercus pyrenaica ... 13
- Trees measured
- 13
- Method
- regression fitted independently of the aboveground system
- Where
- Spain (sample zones per species, Figure 1)
- Last checked
- 2026-11-02
Calculate
32.2
Root biomass (kg)
15.1
Carbon (kg), ×0.47
55.4
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 = 15 | 32.2 | 32.2 | Computed from the printed form computed from the Table 2 coefficients |
| D = 35 | 175 | 175 | Computed from the printed form computed from the Table 2 coefficients |
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