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Table 6 Attributes of PCA pertains to various indices and observations (lands)

From: Appraisal of arid land status: a holistic assessment pertains to bio-physical indicators and ecosystem values

Events Pulse Inter-pulse Non-pulse
  F1 F2 F3 F4 F1 F2 F3 F4 F1 F2 F3 F4
Eigen value 2.62 1.91 0.37 0.10 2.78 1.35 0.73 0.14 2.74 1.19 0.95 0.12
Variability (%) 52.44 38.12 7.42 2.01 55.61 27.01 14.52 2.87 54.82 23.72 19.04 2.42
Cumulative % 52.44 90.57 97.99 100.00 55.61 82.61 97.13 100.00 54.82 78.54 97.58 100.00
Relative coverage score (RCD/BPIm) 0.75 a 0.46 0.48 0.02 0.33 0.77 a 0.64 − 0.03 0.08 0.03 0.89 0.00
Revised SQI − 0.58 0.78 − 0.03 − 0.22 0.81 − 0.53 0.07 − 0.23 0.83 0.12 0.02 0.03
Herbaceous component score (HCS) 0.95 a 0.02 − 0.32 0.00 0.47 0.79 a − 0.48 0.04 0.00 0.97 0.03 0.00
EMV − 0.41 0.88 a − 0.12 0.22 0.86 a − 0.39 0.16 0.29 0.92 a 0.00 0.00 0.08
Land status 0.81 a 0.56 − 0.15 − 0.07 0.97 a 0.17 − 0.15 − 0.07 0.90 a 0.08 0.01 0.01
Land 1 0.80 a 0.17 0.00 0.03 0.52 0.36 0.09 0.03 0.67 0.28 0.03 0.02
Land 2 0.02 0.95 a 0.01 0.02 0.82 a 0.01 0.16 0.01 0.03 0.84 0.12 0.00
Land 3 0.91 a 0.02 0.07 0.00 0.08 0.71 0.20 0.02 0.04 0.35 0.58 0.02
Land 4 0.81 a 0.13 0.05 0.02 0.80 a 0.17 0.00 0.03 0.63 0.07 0.29 0.01
Land 5 0.02 0.09 0.86 a 0.02 0.81 a 0.16 0.03 0.00 0.01 0.89 0.10 0.00
Land 6 0.48 0.06 0.35 0.11 0.50 0.02 0.42 0.05 0.89 a 0.02 0.09 0.01
Land 7 0.71 a 0.01 0.21 0.07 0.69 0.08 0.16 0.07 0.51 0.48 0.00 0.01
Land 8 0.41 0.56 0.01 0.02 0.64 0.29 0.07 0.00 0.43 0.21 0.13 0.22
Land 9 0.14 0.78 a 0.08 0.00 0.21 0.38 0.42 0.00 0.98 a 0.02 0.00 0.00
Land 10 0.01 0.85 a 0.04 0.10 0.70 a 0.21 0.00 0.09 0.75 a 0.14 0.07 0.04
Land 11 0.96 a 0.03 0.01 0.00 0.87 a 0.06 0.06 0.01 0.65 0.02 0.32 0.01
Land 12 0.64 0.35 0.01 0.01 0.62 0.34 0.02 0.01 0.45 0.17 0.39 0.00
  1. a Variable with loading ≥ 0.70 identified as significant variable and marked in italics