# Chalupová et al. 2026: Allometric models to estimate aboveground biomass of Pinus tecunumanii shade trees growing in agroforestry coffee systems

Chalupová, K., Šrámek, M., Kostka, M., Neubauer, Š., Patočka, Z., & Ehrenbergerová, L. (2026). Allometric models to estimate aboveground biomass of Pinus tecunumanii shade trees growing in agroforestry coffee systems. Agroforestry Systems, 100(8), 276.

- DOI: https://doi.org/10.1007/s10457-026-01648-8
- Access: open access
- Copy we read: https://link.springer.com/article/10.1007/s10457-026-01648-8
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-02
- Page: https://treeallometry.org/sources/chalupova-2026/

## Equations from this source (5)

### Branch biomass, Pinus tecunumanii shade trees, power-law DBH+H

Branch biomass for Pinus tecunumanii, Peru. Inputs: DBH + Height. DBH 9.9–43.8 cm. 22 trees.

As printed (Table 1 (form) and Table 6 (parameters)):

> B = a·DBH^b·H^c; a, b, c = 0.01042973, 2.43366, 0.3763336

Page: https://treeallometry.org/equations/chalupova-2026-branch/

### Foliage biomass, Pinus tecunumanii shade trees, power-law DBH+H

Foliage biomass for Pinus tecunumanii, Peru. Inputs: DBH + Height. DBH 9.9–43.8 cm. 22 trees.

As printed (Table 1 (form) and Table 6 (parameters)):

> B = a·DBH^b·H^c; a, b, c = 0.05308069, 2.092881, -0.1218119

Page: https://treeallometry.org/equations/chalupova-2026-foliage/

### Stem biomass, Pinus tecunumanii shade trees, power-law DBH+H

Stem biomass for Pinus tecunumanii, Peru. Inputs: DBH + Height. DBH 9.9–43.8 cm. 22 trees.

As printed (Table 1 (form) and Table 6 (parameters)):

> B = a·DBH^b·H^c; a, b, c = 0.44015225, 1.185463, 0.802877

Page: https://treeallometry.org/equations/chalupova-2026-stem/

### Total aboveground biomass, Pinus tecunumanii shade trees, exponential DBH+H

Aboveground biomass for Pinus tecunumanii, Peru. Inputs: DBH + Height. DBH 9.9–43.8 cm. 22 trees.

As printed (Table 1 (form) and Table 4 (parameters)):

> B = a·exp(b·DBH + c·H); a, b, c = 41.459422, 0.059304, 0.024294

Page: https://treeallometry.org/equations/chalupova-2026-agb-exp/

### Total aboveground biomass, Pinus tecunumanii shade trees, power-law DBH+H

Aboveground biomass for Pinus tecunumanii, Peru. Inputs: DBH + Height. DBH 9.9–43.8 cm. 22 trees.

As printed (Table 1 (form) and Table 4 (parameters)):

> B = a·DBH^b·H^c; a, b, c = 0.30282, 1.632483, 0.589319

Page: https://treeallometry.org/equations/chalupova-2026-agb-power/