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Table 5 Comparision of bias between regression equation based and BEF-based biomass estimates

From: Live above- and belowground biomass of a Mozambican evergreen forest: a comparison of estimates based on regression equations and biomass expansion factors

# Tree component Bias (%)a Bias (%)b
1 Taproot + stump – 3.3436 – 5.6745
2 Lateral roots – 3.3643 13.8733
3 Root system (1 + 2) – 3.3540 4.1660
4 Stem wood 10.0738 1.3651
5 Stem bark – 9.3876 – 1.4220
6 Stem (4 + 5) 8.9983 0.3591
7 Branches – 9.4311 0.7147
8 Foliage – 23.2792 – 81.7205
9 Crown (7 + 8) – 10.0298 – 2.8493
10 Shoot system (6 + 9) – 2.5149 5.7208
11 Whole tree (3 + 10) – 2.6778 5.4193
  1. Superscripts a and b indicate biases related to regression equations based and BEF-based biomass estimates, respectively; the major components and their values are indicated in bold font