Table 2.

The best predictors and relative contribution to soil bacterial and fungal richness.

Models	N regime	Predictor	Correlation	R 2	Relative contribution (%)
Bacteria	INO	NH4+-N	0.56	0.69	2
		Biomass			98
	CIO	Leaf carbon	0.31	0.18	100
	ORG	NH4+-N	0.36	0.24	7
		Biomass			93
Fungi	INO	pH	0.63	0.70	97
		Height			3
	CIO	Biomass	0.72	0.80	51
		L carbon			49
	ORG	NH4+-N	0.20	0.38	30
		Height			70