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Table 6 Estimates of mean AGB kg tree−1 and relative errors (%) in estimates in mean AGB for seven Mexican species

From: Model errors in tree biomass estimates computed with an approximation to a missing covariance matrix

Species \(\hat{\text{AGB}}\) REFIT RECOV RREC
Guazuma ulmifolia 54 5.0 4.7 5.4
Inga vera 198 8.6 8.2 9.0
Ochroma pyramidale 50 11.8 11.2 12.8
Trichospernum mexicanum 51 13.9 13.1 15.1
Quercus castenea 75 23.2 28.6 33.9
Quercus latea 129 101.7 23.9 30.7
Quercus spp. 135 53.0 13.1 13.8
  1. Estimates are based on tree data provided by the Mexican NFI (see Table 9). The errors are derived with refitted (REFIT), recovered (RECOV), and robustly recovered (RREC) covariance matrices for the parameters in the biomass equations in Table 8.