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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