# Djomo et al. 2010: Allometric equations for biomass estimations in Cameroon and pan moist tropical equations including biomass data from Africa

Djomo, A.N., Ibrahima, A., Saborowski, J., Gravenhorst, G. (2010). Allometric equations for biomass estimations in Cameroon and pan moist tropical equations including biomass data from Africa. Forest Ecology and Management, 260(10), 1873–1885.

- DOI: https://doi.org/10.1016/j.foreco.2010.08.034
- Access: paywalled
- Copy we read: https://uni-goettingen.de/de/document/download/4df40c701547ab5773871feade802dc2.pdf/Djomo_et_al_(2010)_FORECOLMANAG_allometric_equations.pdf
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-01
- Page: https://treeallometry.org/sources/djomo-2010/

## Equations from this source (7)

### Campo-Ma'an AGB from D²H (Table 3, model 3)

Aboveground biomass for Mixed species, Campo-Ma'an lowland moist forest, Cameroon. Inputs: DBH + Height. DBH 1–79 cm. 71 trees.

As printed (Table 3, Total biomass, model 3):

> 3. ln(M) = a + b ln(D2 H)   a = −3.0788  b = 0.9066

Page: https://treeallometry.org/equations/djomo-2010-campo-d2h/

### Campo-Ma'an AGB from DBH (Table 3, model 2)

Aboveground biomass for Mixed species, Campo-Ma'an lowland moist forest, Cameroon. Inputs: DBH. DBH 1–79 cm. 71 trees.

As printed (Table 3, Total biomass, model 2):

> 2. ln(M) = a + b ln(D)   a = −2.1079  b = 2.3278

Page: https://treeallometry.org/equations/djomo-2010-campo-d/

### Campo-Ma'an AGB from DBH and wood density (Table 3, model 4)

Aboveground biomass for Mixed species, Campo-Ma'an lowland moist forest, Cameroon. Inputs: DBH + Wood density. DBH 1–79 cm. 71 trees.

As printed (Table 3, Total biomass, model 4):

> 4. ln(M) = a + b ln(D) + c ln(ρ)   a = −1.9644  b = 2.3382  c = 0.3579

Page: https://treeallometry.org/equations/djomo-2010-campo-d-rho/

### Campo-Ma'an AGB from DBH, height and wood density (Table 3, model 5)

Aboveground biomass for Mixed species, Campo-Ma'an lowland moist forest, Cameroon. Inputs: DBH + Height + Wood density. DBH 1–79 cm. 71 trees.

As printed (Table 3, Total biomass, model 5 and footnote a):

> 5. ln(M) = a + b(ln D)2 + c ln(D2 H) + β ln(ρ)   a = −2.3325  b = 0.1651  c = 0.6620  (β = 0.1309)

Page: https://treeallometry.org/equations/djomo-2010-campo-d-d2h-rho/

### Pan moist tropical AGB from D²H (Table 4, model 3)

Aboveground biomass for Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America), Pantropical. Inputs: DBH + Height. DBH 1–138 cm. 274 trees.

As printed (Table 4, model 3):

> 3. ln(M) = a + b ln(D2 H)   a = −3.2249  b = 0.9885

Page: https://treeallometry.org/equations/djomo-2010-pan-d2h/

### Pan moist tropical AGB from DBH (Table 4, model 2)

Aboveground biomass for Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America), Pantropical. Inputs: DBH. DBH 1–148 cm. 443 trees.

As printed (Table 4, model 2):

> 2. ln(M) = a + b ln(D)   a = −2.1801  b = 2.5624

Page: https://treeallometry.org/equations/djomo-2010-pan-d/

### Pan moist tropical AGB from DBH, height and wood density (Table 4, model 5)

Aboveground biomass for Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America), Pantropical. Inputs: DBH + Height + Wood density. DBH 1–138 cm. 274 trees.

As printed (Section 3.2, model 14 / Table 4, model 5):

> ln(M) = −2.4733 + 0.2893(ln D)2 − 0.0372(ln D)3 + 0.7415 ln(D2 H) + 0.2843 ln(ρ)

Page: https://treeallometry.org/equations/djomo-2010-pan-d-d2h-rho/