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. 2020 Jan 7;5(1):e00704-19. doi: 10.1128/mSystems.00704-19

TABLE 2.

Results of forward selection of environmental and spatial variables for fungal communities based on four beta-diversity indicesa

Beta-diversity
index		 Variable
source		 0-10cm layer
 10-20cm layer
 20-40cm layer
Variable(s) R2 Variable(s) R2 Variable(s) R2
Sørensen’s index Environmental pH, TP 0.118 Fe, pH 0.129 pH, TN 0.108
Spatial PCNM2, PCNM11 0.144 PCNM2, PCNM11, PCNM1 0.195 PCNM2, PCNM11, PCNM3 0.153
Bray-Curtis dissimilarity Environmental pH, TP 0.098 Fe 0.101 NS NS
Spatial PCNM2 0.190 PCNM2, PCNM11, PCNM8 0.340 PCNM20 0.097
Jaccard distance Environmental pH, TP 0.119 Fe, pH 0.111 pH, TN 0.098
Spatial PCNM2, PCNM11 0.105 PCNM2, PCNM11, PCNM1 0.167 PCNM2, PCNM11, PCNM3 0.144
a

Spatial variables were derived from vertical spatial coordinates using Moran’s eigenvector maps. NS, not statistically significant (P > 0.05).