Avicennia officinalis / Branch biomass

Avicennia officinalis branch biomass, a x^b of DBH * H (Table 3)

Branch biomassAvicennia officinalis · AcanthaceaeMyanmar (Burma)naturalRead from the original paper

Equation

As printed (Table 3)

Branch (kg) DBHH (cm m) 15 0.0574 ×10−2 (±0.0411×10−2) 2.340 (±0.189) 0.922*

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

Branch biomass = 0.000574 * (D * H)^2.34

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

Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar.

Source

Lwin, K.M., Hien, C.T.T., Chan, N. (2026). Establishment of site- and species-specific allometric models of the dominant mangrove species and estimation of mangrove biomass in Letkhokkon Area, Myanmar. TROPICS, 35(1), 39–53.

doi:10.3759/tropics.simm01 · Open access · copy we read

Ao 15 5 13 5.6 8.2

Trees measured · Table 2

The A. officinalis had a DBH range of 5.0 cm to 13.0 cm and a H range of 5.6 m to 8.2 m

Smallest DBH · Biomass measurement section

Trees measured: 15
DBH range: 5–13 cm
Height range: 5.6–8.2 m
R²: 0.922
Method: Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)
Where: Letkhokkon delta mangrove, Myanmar
Last checked: 2026-11-02

Calculate

DBH (cm)Height (m)

Height from

4.93

Branch biomass (kg)

2.32

Carbon (kg), ×0.47

8.5

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 = 8, H = 6	4.93	4.93	Computed from the printed form computed from the Table 3 coefficients
D = 15, H = 9	55.4	55.4	Computed from the printed form computed from the Table 3 coefficients

Report a problem with this equation · JSON

Avicennia lanata Branch biomass from D30 (Table 1) · Hasidu et al. 2022 · D30
Avicennia lanata Branch biomass from DBH (Table 1) · Hasidu et al. 2022 · DBH
Avicennia officinalis aboveground biomass, a x^b of DBH^2 * H (Table 3) · same paper · Aboveground biomass
Avicennia officinalis leaf biomass, a x^b of rho * DBH * H (Table 3) · same paper · Foliage biomass
Avicennia officinalis stem biomass, a x^b of rho * DBH^2 * H (Table 3) · same paper · Stem biomass
Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH (Table 5) · same paper · Aboveground biomass
Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH^2 * H (Table 5) · same paper · Aboveground biomass
Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH * H (Table 5) · same paper · Aboveground biomass
Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of rho * DBH (Table 5) · same paper · Aboveground biomass
Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of rho * DBH^2 * H (Table 5) · same paper · Aboveground biomass

Compare these curves

Avicennia officinalis branch biomass, a x^b of DBH * H (Table 3)

Related