Table 1.

The R² of “horizon” or “depth” in prokaryote and fungi PERMANOVA models when either was included.

	Prokaryote					Fungi
Model	Site	Horizon	Depth	Site × Horizon	Site × Depth	Site	Horizon	Depth	Site × Horizon	Site × Depth
Full	0.346	0.039	0.024	0.122	0.089	0.221	0.021	0.010	0.109	0.068
SSCZO	0.278	0.073	0.045	0.104	0.069	0.143	0.036	0.019	0.086	0.061
OS		0.255	0.164				0.167	0.089
POF		0.156	0.137				0.096	0.096
MCF		0.189	0.126				0.160	0.072
SAF		0.375	0.201				0.145	0.110
WMET	0.255	0.082	0.051	0.102	0.085	0.218	0.049	0.024	0.101	0.061
SBS		0.212	0.155				0.205	0.124
PJW		0.238	0.195				0.147	0.110
SAS		0.387	0.206				0.249	0.118
ADG		0.218	0.182				0.296	0.091

The Full, SSCZO, and WMET models also included “site” and the interaction of “horizon” and “site” or “depth” and “site” as factors. Bolded values indicate significance of the factor (p < 0.05).