Equations / Aboveground biomass

Avocado on Kenyan farms, mean DBH (Eq. 2)

Aboveground biomassPersea americana · LauraceaeKenyaagroforestryFrom a compilation, not the original

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Equation

As printed (CIFOR-ICRAF brief, Table 2)

Eq. 2 AGB = 0.0638 × μDBH^2.5435 5.3–96.2 2–52 0.86 18.4

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

Aboveground biomass = 0.0638 * D^2.5435

D: Diameter at breast height (1.3 m), cm

Read from the CIFOR-ICRAF brief (Muthuri, Kuyah, Njoki, Wakaba 2024), not the paper. The brief writes μDBH (mean DBH, for multi-stemmed trees) in its table; tree age 2-52 years; MAPE 18.4%. An infographic version reportedly shows 0.0648: confirm against the paper. Mango Eq. 1 uses mean primary-branch diameter (μDPB) and is not included.

Source

Kuyah, S., Muthuri, C.W., Wakaba, D., Cyamweshi, A.R., Kiprotich, P., Mukuralinda, A. (2024). Allometric equations and carbon sequestration potential of mango (Mangifera indica) and avocado (Persea americana) in Kenya. Trees, Forests and People, 15, 100467.

doi:10.1016/j.tfp.2023.100467 · Open access · compilation we read

avocado trees (AGB = 0.0638 × DBH^2.5435)

Equation · CIFOR-ICRAF brief, key messages

DBH range: 5.3–96.2 cm
R²: 0.86
Method: power model
Where: Smallholder farms, Makueni and Kiambu counties, Kenya
Last checked: 2026-11-01

Calculate

DBH (cm)

130

Aboveground biomass (kg)

61.11

Carbon (kg), ×0.47

224.1

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 = 20	130	130	Computed from the printed form hand-computed from the published form
D = 50	1,337	1,337	Computed from the printed form hand-computed from the published form

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