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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.