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表4 耐镉指数的主成分分析

Table 4 Principal component analysis of Cd resistance indexes

指标Index PC1 PC2 PC3 PC4 ARGR 0.29 -0.58 0.31 0.33 ARGP 0.24 0.41 0.77 -0.32 ARGI 0.41 0.09 -0.07 -0.10 ARVI 0.41 -0.08 -0.20 -0.25 ARRL 0.39 0.07 -0.40 0.08 AREL 0.36 -0.35 -0.05 -0.54 ARFW 0.38 -0.01 0.22 0.62 ARDW 0.30 0.60 -0.23 0.20 特征值Eigenvalue 5.40 1.10 0.79 0.40 贡献率Contribution ratio (%) 67.49 13.72 9.87 4.94 累计贡献率 Accumulated contribution rate (%) 67.49 81.22 91.09 96.03