Research Article

Species-Specific Allometric Equations, Biomass Expansion Factor, and Wood Density of Native Tree Species in the Dry Afromontane Forest of Ethiopia

Table 5

The best regression equations for total above-ground biomass for mixed tree species.

Allometric modelsAdj. R2AICCFRSE valueRank

TAGBest = exp (−1.30 + 2.13  ln (dbh)0.8473.071.100.422.2e − 168
TAGBest = exp (−2.56 + 0.89  ln (dbh2 ht)0.8949.501.060.352.2e − 165
TAGBest = exp (−0.80 + 1.06  ln (dbh2 wd)0.8665.081.080.402.2e − 167
TAGBest = exp (−2.14 + 0.89  ln (dbh2 ht  wd)0.9140.311.050.322.2e − 163
TAGBest = exp (−3.09 + 1.55  ln (dbh) + 1.36  ln (ht)0.9047.971.060.342.2e − 164
TAGBest = exp (−1.02 + 2.14  ln (dbh) + 0.74  ln (wd)0.8665.051.080.392.2e − 166
TAGBest = exp (2.74 + 1.61  ln (dbh) + 1.27  ln (ht) + 0.6  ln (wd)0.9139.621.050.322.2e − 162
TAGBest = exp (2.82 + 1.41  ln (dbh) + 1.37  ln (ht) + 0.63  ln (wd) + 0.28  ln (cd)0.9236.371.050.312.2e − 161

Model performance information should be put on the top of Adj. R2, AIC, CF, RSE, P value, and Rank.