Table 1.

The correlation between zinc leaching efficiency on day 30 and the dominant OTU at different stages

OTU	Day 6		Day 12		Day 21		Day 30
	r	p	r	p	r	p	r	p
OTU_1	− 0.384	0.095	− 0.435	0.055	− 0.538	0.014	− 0.304	0.192
OTU_2	0.380	0.098	0.457	0.043	0.197	0.405	− 0.217	0.359
OTU_3	− 0.101	0.671	0.230	0.329	0.091	0.704	0.357	0.122
OTU_4	− 0.071	0.768	− 0.177	0.456	− 0.543	0.014	− 0.337	0.147
OTU_5	0.509	0.022	0.184	0.437	0.277	0.237	− 0.026	0.915
OTU_6	0.000	1.000	0.110	0.644	− 0.438	0.053	0.171	0.471
OTU_7	0.207	0.381	0.215	0.362	0.128	0.591	0.075	0.753
OTU_8	0.220	0.352	− 0.024	0.920	− 0.337	0.146	0.312	0.180
OTU_9	0.363	0.116	0.320	0.169	− 0.136	0.568	− 0.141	0.555
OTU_10	0.070	0.768	0.152	0.523	− 0.263	0.263	0.120	0.613
OTU_11	− 0.217	0.359	− 0.130	0.584	− 0.327	0.159	0.000	1.000
OTU_22	0.164	0.489	0.070	0.769	0.261	0.267	0.153	0.519
OTU_28	− 0.002	0.992	0.239	0.311	0.164	0.490	0.001	0.997
OTU_144	0.140	0.556	− 0.172	0.469	0.047	0.843	0.102	0.670
OTU_183	0.118	0.620	0.346	0.135	0.137	0.565	− 0.003	0.990
OTU_208	− 0.067	0.780	− 0.262	0.264	− 0.010	0.966	− 0.103	0.667
OTU_287	0.024	0.920	− 0.298	0.201	0.181	0.446	0.043	0.856

Significant (p < 0.05) and marginally significant (p < 0.1) differences were indicated in italics