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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
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