Table 4.

Values of Pearson's correlation coefficient (r) for correlation among measured microbial parameters.

	N-NO3 −	N-NH4 +	Number	H-AOA	S-AOA	E H-AOA	H-AOB	S-AOB	E H-AOB	PC1	PC2
N-NO3 −	1
N-NH4 +	−0.776  P < 0.001	1
Number	0.866  P < 0.001	−0.633  P < 0.001	1
H-AOA	0.663  P < 0.001	−0.414  P = 0.012	0.717  P < 0.001	1
S-AOA	0.727  P < 0.001	−0.488  P = 0.003	0.731  P < 0.001	0.952  P < 0.001	1
E H-AOA	−0.478  P = 0.003	0.357  P = 0.033	−0.358  P = 0.032	−0.244  P = 0.152	−0.498  P = 0.002	1
H-AOB	0.417  P = 0.011	0.016  P = 0.925	0.452  P = 0.006	0.601  P < 0.001	0.618  P < 0.001	−0.324  P = 0.054	1
S-AOB	0.377  P = 0.023	0.089  P = 0.607	0.436  P = 0.008	0.571  P < 0.001	0.587  P < 0.001	−0.308  P = 0.068	0.983  P < 0.001	1
E H-AOB	0.063  P = 0.714	−0.171  P = 0.320	0.030  P = 0.861	0.087  P = 0.614	0.115  P = 0.505	−0.134  P = 0.434	0.305  P = 0.070	0.147  P = 0.391	1
PC1	0.867  P < 0.001	−0.577  P < 0.001	0.859  P < 0.001	0.870  P < 0.001	0.929  P < 0.001	−0.549  P < 0.001	0.727  P < 0.001	0.688  P < 0.001	0.200  P = 0.241	1
PC2	−0.379  P = 0.023	0.732  P < 0.001	−0.266  P = 0.117	0.052  P = 0.764	0.003  P = 0.987	0.104  P = 0.546	0.659  P < 0.001	0.684  P < 0.001	0.193  P = 0.259	0.000  P = 1.000	1

AOA: ammonia-oxidizing archaea; AOB: ammonia-oxidizing bacteria; H: Shannon-Wiener index; S: richness; E _H: evenness. The effects in bold are significant at P < 0.05.