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Table 5 (b) Linear mixed model on the annual basal area increment (mm2·yr.−1) of all analyzed trees (response variable) with the individual tree code as random effect and fixed effects logarithmized age related to the growing site (urban and rural), SD: Standard deviation, AIC: Akaike Information Criterion

From: Effects of the urban heat island and climate change on the growth of Khaya senegalensis in Hanoi, Vietnam

Parameter

Fixed effect

Value ± SE

p

a

Intercept

−6.92 ± 0.08

<  0.001

log(ageij)

Age

1.59 ± 0.02

<  0.001

urbanity grade ij

Grade of urbanity

1.68 ± 0.10

<  0.001

b x urbanity gradeij x log(ageij)

Age x Grade of urbanity

−0.48 ± 0.02

<  0.001

Random effect dij

0.52

ε

0.17

AIC

− 2356.13

  1. Levels of Urbanity: 2 (Urban and Rural)