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Table 2 Principal component analysis of soil quality indicators

From: Effect of grassland degradation on soil quality and soil biotic community in a semi-arid temperate steppe

Principal component PC1 PC2
Eigenvalues 5.22 1.83
Variance (%) 57.96 20.34
Cumulative (%) 57.96 78.3
Aboveground biomass 0.33 0.27
Belowground biomass 0.18 −0.53
Root shoot ratio −0.14 0.63
Water content 0.32 0.15
Bulk density −0.35 −0.27
pH −0.31 0.37
Total C 0.43 −0.08
Total N 0.42 −0.12
Total P 0.4 −0.06
  1. Notes: Bold factors are retained in the minimum data set (MDS)
  2. PC1 and PC2 indicated the first and second principal component