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Table 1 Linear correlations (R2) with the NMDS ordination pattern

From: Associations between forest vegetation and the fertility of soil organic horizons in northwestern Russia

  Variable R 2 P
Climatic parameters Effective temperature sum 0.612 0.001
Precipitation at the period of the effective T 0.517 0.001
Average annual temperature 0.629 0.001
Amount of precipitation per year 0.458 0.001
Plant and lichens cover Lichens cover 0.298 0.001
Green moss cover 0.229 0.001
Grasses + sedges 0.208 0.001
Dwarf shrubs 0.415 0.001
Herbs 0.554 0.001
C/BC horizon characteristics pH H2O 0.095 0.001
pH CaCl2 0.139 0.009
Total Ca 0.285 0.001
Total Mg 0.148 0.001
Total K 0.444 0.001
Total Na 0.380 0.001
Tree stand characteristics Height 0.555 0.001
Diameter 0.335 0.001
Stand volume 0.445 0.001
Organic soil horizon pH H2O 0.070 0.016
pH CaCl2 0.111 0.002
Total N 0.223 0.001
CN 0.182 0.001
Exchangeable Ca 0.163 0.001
Exchangeable Mg 0.157 0.001
Exchangeable K 0.241 0.001
Exchangeable Na 0.149 0.001
Extractable P 0.218 0.001
BSa 0.156 0.001
  1. aHere and in Tables 5, 6, 7, 8 and 9 BS means base saturation