Table 3

Spearman's rank correlation coefficient rho of relative 16S rRNA gene T-RF abundances across all forest samples with soil and site characteristicsa

Characteristic (n = 30 samples)T-RF 90, Gp1T-RF 256, Gp1T-RF 142, Gp3T-RF 134, Gp5T-RF 163, Gp6T-RF 189, Gp6T-RF 192, Gp6T-RF 281, Gp6T-RF 283, Gp6T-RF 460, Gp11T-RF 130, Gp17T-RF 429T-RF 554
pH0.60***−0.67***0.420.87***0.73***0.88***0.83***0.85***0.75***0.49*0.83***−0.89***−0.77***
Corg0.52*−0.50*0.310.71***0.56**0.75***0.74***0.79***0.58**0.390.72***−0.70***−0.61***
Nitrogen (N)0.54*−0.56**0.380.74***0.60**0.79***0.78***0.84***0.67***0.440.73***−0.76***−0.63***
Corg/N ratio−0.320.57**−0.69***−0.66***−0.49*−0.70***−0.70***−0.81***−0.77***−0.41−0.70***0.85***0.58**
Phosphorus0.36−0.53*0.400.71***0.48*0.68***0.72***0.79***0.60**0.470.72***−0.72***−0.57**
Soil moisture0.40−0.51*0.59**0.58**0.410.67***0.61***0.62***0.71***0.300.67***−0.72***−0.57**
Amoebae0.16−0.310.320.340.270.440.420.4440.430.170.47−0.35−0.51*
Nitrate0.19−0.270.460.180.160.380.360.390.54*0.210.26−0.35−0.12
  • a Only T-RFs with significant (*, P < 0.05; **, P < 0.01; ***, P < 0.001) correlations are shown in bold. P values have been adjusted for multiple comparisons by the FDR approach. The predominant acidobacterial subgroup represented by the analyzed T-RFs is mentioned. Soil temperature, soil respiration, abundance of flagellates and ciliates, the number of vascular plant species, land use intensity, C/N ratio, and ammonium content were included in the calculations but did not show any significant correlations and, therefore, have been excluded from the table.