Table 2.

Mantel test results to discern correlation between the composition of Nitrobacter- and Nitrospira-like NOB community and soil geochemical variables.

	Nitrobacter-like NOB		Nitrospira-like NOB
	R-value	p-value	R-value	p-value
TC	0.35	<0.001	0.32	<0.001
TN	0.43	<0.001	0.40	<0.001
SOC	0.33	<0.001	0.28	<0.001
TP	0.55	<0.001	0.53	<0.001
TK	0.06	0.165	0.04	0.433
AP	0.35	<0.001	0.37	<0.001
AK	0.38	<0.001	0.39	<0.001
NH4+	0.26	<0.001	0.34	<0.001
All factors	0.35	<0.001	0.30	<0.001