Table 2.

The relationships between microbial communities and environmental factors revealed by partial Mantel test.

Environmental factors	Community structure						Community function
	Weighted Bray-Curtis		Sorensen (unweighted Bray-Curtis)		Weighted Unifrac		Unweighted Unifrac		Overall		6 categories Selected
	R	P	R	P	R	P	R	P	R	P	R	P
pH	0.41	0.003∗∗	0.67	0.001∗∗∗	0.34	0.032∗	0.65	0.001∗∗∗	0.14	0.245	0.10	0.324
DO	0.16	0.138	0.36	0.013∗	0.08	0.242	0.41	0.010∗∗	-0.20	0.909	-0.21	0.910
Salinity	0.46	0.002∗∗	0.40	0.004∗∗	0.43	0.004∗∗	0.36	0.006∗∗	0.39	0.020∗	0.47	0.004∗∗
COD	0.13	0.153	0.18	0.108	0.10	0.243	0.18	0.119	0.23	0.065⋅	0.29	0.036∗
W_Ammonia	0.36	0.033∗	0.78	0.003∗∗	0.24	0.121	0.76	0.003∗∗	-0.21	0.834	-0.24	0.921
W_DIN	0.35	0.024∗∗	0.87	0.001∗∗∗	0.23	0.179	0.85	0.001∗∗∗	-0.15	0.662	-0.16	0.698
W_TP	0.21	0.050∗	0.31	0.033∗	0.20	0.103	0.25	0.046∗	0.09	0.238	0.19	0.114
S_TP	-0.06	0.603	0.33	0.080	-0.03	0.489	0.32	0.094⋅	-0.21	0.932	-0.25	0.974
S_TN	0.15	0.175	0.20	0.165	0.16	0.216	0.17	0.188	0.02	0.424	-0.07	0.635
S_Nitrate	0.09	0.297	-0.05	0.488	-0.02	0.420	-0.04	0.470	0.03	0.369	0.00	0.412
S_Sulfate	0.46	0.001∗∗∗	0.49	0.001∗∗∗	0.29	0.018∗	0.45	0.001∗∗∗	0.01	0.445	0.09	0.298
S_OM	0.33	0.026∗	0.50	0.005∗	0.25	0.077⋅	0.48	0.012∗	-0.15	0.766	-0.23	0.935
S_Metal	0.16	0.152	0.21	0.129	0.22	0.119	0.23	0.125	0.04	0.397	-0.07	0.625

The effects of spatial distance were controlled. Seawater and sediment parameters are prefixed with “W_” and “S_”, respectively (hereinafter inclusive). ^∗P < 0.05, ^∗∗P < 0.01, and ^∗∗∗P < 0.001.