TABLE 2.

Mantel test correlations between community structure of ammonia-oxidizing archaea or ammonia-oxidizing bacteria and soil physicochemical properties^a

Soil variable	AOA		AOB
	R	P	R	P
Soil pH	0.896	0.001	0.901	0.001
SOC	0.261	0.036	0.111	0.196
DOC	0.208	0.092	−0.002	0.374
TN	0.200	0.044	0.185	0.054
DON	0.110	0.209	0.058	0.250
NH4+-N	0.060	0.280	0.023	0.379
NO3−-N	0.406	0.002	0.435	0.001
AP	0.289	0.042	0.018	0.393
AK	0.147	0.140	0.098	0.228
DCo	0.278	0.046	0.026	0.386

^aValues in boldface type indicate significant effects (P < 0.05).