Table 1. Summary for the best statistical model based on 4 predictor variables explaining the variation of aboveground community biomass.

Functional trait	t-value	P-value	Partial R 2
Nitrogen fixation	11.718	<0.001	positive 0.893
Floristic status	2.115	0.0416	negative 0.337
AMF	1.726	0.0933	positive 0.280
SLA	−1.966	0.0573	positive 0.315
Degrees of freedom	35
Multiple R 2	0.9304
P -value	<0.001