Pinus monophylla / Foliage biomass
NSVB singleleaf pinyon, Temperate Desert Division (340): foliage biomass, Schumacher-Hall model (Eq. 1)
Foliage biomassPinus monophylla · PinaceaeUnited StatesRead from the original paper
© Dawn Endico · CC BY-SA · iNaturalistEquation
As printed (Table S9a (Table S9a_foliage_coefs_spcd.csv, WO-GTR-104-Supp1), columns SPCD,DIVISION,STDORGCD,model,a,a1,b,b1,c,c1)
133,340,,1,11.54526228,,1.501359265,,-0.474110468,
In this library's units, ready to compute (kg)
Foliage biomass = 0.45359237 * 11.54526228 * (D/2.54)^1.501359265 * (H/0.3048)^(-0.474110468)D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
DBH is measured at 4.5 ft (1.37 m). Paper units: in, ft, lb; expression converts D cm→in (/2.54), H m→ft (/0.3048) and lb→kg (×0.45359237). No scorecard row for this component, species and ecodivision, so n and DBH range are left out.
Source
doi:10.2737/WO-GTR-104 · Open access · copy we read
yi = a × Di^b × Hi^c + εi
Di is diameter (inches) at breast height (4.5 feet), Hi is total tree height (feet)
units for volume and biomass predictions are cubic feet and pounds, respectively
133,singleleaf pinyon,N,Pinus,monophylla,,,Pinus monophylla
- Method
- NSVB Schumacher-Hall model (Eq. 1), coefficients for SPCD 133 in DIVISION 340 from table S9a; fitted with weighted regression to destructively sampled trees
- Where
- FIA ecodivision Temperate Desert Division (340), mapped in GTR fig. 1
- Last checked
- 2026-11-03
Calculate
Height from
29.1
Foliage biomass (kg)
13.7
Carbon (kg), ×0.47
50.2
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 = 30.5, H = 21.3 | 29.1 | 29.1 | Computed from the printed form computed from the published form at D = 12 in, H = 70 ft, converted to cm, m and kg |
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