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Table 2 Alternative models tested for predicting total above-ground tree biomass (model 1–6) and for predicting total height (model 7–10) in mountain moist evergreen forest of Moribane forest reserve in Mozambique

From: Biomass allometric equation and expansion factor for a mountain moist evergreen forest in Mozambique

Model

Expression

Source

Biomass allometric models

1

\( tDW = b_{0} \times DBH^{{b_{1} }} \times TH^{{b_{2} }} \)

Magalhães and Seifert [20]

2

\( tWD = b_{0} \times DBH^{{b_{1} }} \times TH^{{b_{2} }} \times WD^{{b_{3} }} \)

Ngomanda et al. [12], Chave et al. [42], Mugasha et al. [37]

3

\( tDW = b_{0} \times DBH^{{b_{1} }} \times WD^{{b_{2} }} \)

Mate et al. [15]

4

\( tDW = b_{0} \times \left( {DBH} \right)^{b1} \)

Guedes et al. [17]

5

\( tDW = b_{0} \times (DBH^{2} \times TH \times WD)^{{b_{2} }} \)

Ngomanda et al. [12], Chave et al. [42], Mugasha et al. [37]

6

\( tDW = b_{0} \times \left( {DBH^{2} \times TH^{b1} } \right) \)

 

Diameter–height models

7

\( TH = 1.3 + b_{0} \times \left[ {{ \exp }\left( { - b_{1} \times \exp \left( { - b_{2} \times DBH} \right)} \right)} \right] \)

Mugasha et al. [37]

8

\( TH = b_{0} - b_{1} \times exp\left( { - b_{2} \times DBH} \right) \)

Ngomanda et al. [12]

9

\( TH = 1.3 + \left[ {DBH^{2} /b_{0} + b_{1} \times DBH + b_{2} \times DBH^{2} } \right] \)

Mugasha et al. [37]

10

\( TH = b_{0} \times DBH^{{b_{1} }} \)

Ngomanda et al. [12]

  1. tDW is total (stem, branches and foliage) dry weight of individual tree (kg tree−1)
  2. DBH is diameter at breast height (cm)
  3. TH is total height (m)
  4. WBD is wood basic density (g cm−3)
  5. b0, b1, b2 and b3 are the regression parameters