Research Article

Site Specific Stem Volume Models for Pinus patula and Pinus oocarpa

Table 4

Performance of developed models versus the generic model on the modelling .

SpeciesModelMean tree volume (m3)MPE (%)TRE (%)

Pinus patula1.02
31.93

Pinus oocarpa1.54
21.81

Note. Mean volumes followed by the same letter within species significantly differ (); different from zero (); ns = not significantly different from zero (); data set was used in modelling.