Changes in Soil Properties: Appendix

Appendix 1a: Descriptive statistics for the initial values (x1) of soil chemical property at two sites

Soil chemical

Properties

Site

No. of paired samples

Mean

Median

Min.

Max.

SD

SE of mean

pH 

IR

472

4.50

4.48

3.38

5.84

0.34

0.02

PC

472

4.29

4.26

3.49

5.80

0.33

0.02

Organic C (%) 

IR

PC

Total N (%) 

IR

PC

Total P (mg/kg) 

IR

320

171.45

146.47

42.00

617.93

91.71

5.13

PC

320

254.82

216.00

41.86

995.00

144.65

8.09

Bray-2 P (mg/kg) 

IR

520

18.47

11.55

1.30

108.30

18.95

0.83

PC

520

44.74

35.80

2.10

149.80

35.53

1.56

Exch. K (cmol/kg) 

IR

538

0.17

0.14

0.04

0.96

0.12

0.01

PC

538

0.29

0.24

0.03

1.71

0.20

0.01

Exch. Mg (cmol/kg) 

IR

478

0.25

0.20

0.02

1.45

0.21

0.01

PC

478

0.29

0.22

0.03

1.99

0.24

0.01

Appendix 1b: Descriptive statistics for the initial values (x1) of soil chemical property at two depths

Soil chemical

Properties

Depth

(cm)

No. of paired samples

Mean

Median

Min.

Max.

SD

SE of mean

pH 

0-15

472

4.48

4.45

3.53

5.80

0.37

0.02

15-45

472

4.32

4.30

3.38

5.84

0.31

0.01

Organic C (%) 

0-15

390

1.34

1.30

0.36

3.50

0.46

0.02

15-45

390

0.97

0.92

0.31

2.39

0.37

0.02

Total N (%) 

0-15

390

0.12

0.12

0.04

0.24

0.04

0.00

15-45

390

0.09

0.09

0.03

0.19

0.03

0.00

Total P (mg/kg) 

0-15

320

252.77

212.50

45.10

995.00

146.66

8.20

15-45

320

173.50

151.07

41.86

563.00

90.34

5.05

Bray-2 P (mg/kg) 

0-15

520

38.19

27.65

1.80

148.50

33.83

1.48

15-45

520

25.02

15.45

1.30

149.80

27.12

1.19

Exch. K (cmol/kg) 

0-15

538

0.25

0.19

0.04

1.40

0.18

0.01

15-45

538

0.22

0.17

0.03

1.71

0.17

0.01

Exch. Mg (cmol/kg) 

0-15

478

0.32

0.24

0.02

1.99

0.26

0.01

15-45

478

0.22

0.18

0.02

1.06

0.17

0.01

Appendix 1c: Descriptive statistics for the rates of change (%) of soil chemical property at two sites

Soil chemical

Properties

Site

No. of paired samples

Mean

Median

Min.

Max.

SD

SE of mean

pH 

IR

472

-2.50

-3.20

-29.35

35.95

10.68

0.49

PC

472

-1.27

-1.97

-27.24

35.44

9.52

0.44

Organic C (%) 

IR

PC

Total N (%) 

IR

PC

Total P (mg/kg) 

IR

320

18.5

0.8

-83.1

402.2

78.2

4.4

PC

320

12.8

-3.9

-84.2

254.5

65.4

3.7

Bray-2 P (mg/kg) 

IR

520

113.6

16.0

-98.0

1594.8

251.8

11.0

PC

520

62.2

-9.5

-370.1

2336.4

236.4

10.4

Exch. K (cmol/kg) 

IR

538

51.4

15.3

-90.5

863.0

133.8

5.8

PC

538

27.6

0.0

-93.5

588.9

98.8

4.3

Exch. Mg (cmol/kg)

IR

478

29.3

-18.5

-94.1

1020.0

131.6

6.0

PC

478

43.8

-3.3

-90.7

942.9

147.1

6.7

Appendix 1d: Descriptive statistics for the rates of change (%) of soil chemical property at two depths

Soil chemical

Properties

Depth

(cm)

No. of paired samples

Mean

Median

Min.

Max.

SD

SE of mean

pH 

0-15

472

-1.24

-2.48

-29.35

35.95

10.81

0.50

15-45

472

-2.53

-2.60

-27.40

32.03

9.36

0.43

Organic C (%) 

0-15

390

-4.88

-9.69

-61.67

151.56

32.33

1.64

15-45

390

-9.17

-15.76

-76.00

134.69

35.09

1.78

Total N (%) 

0-15

390

0.90

-6.72

-64.71

183.33

36.77

1.86

15-45

390

-3.93

-12.50

-66.67

200.00

37.20

1.88

Total P (mg/kg) 

0-15

320

24.3

1.9

-73.4

402.2

79.0

4.4

15-45

320

7.0

-4.5

-84.2

303.8

63.5

3.5

Bray-2 P (mg/kg) 

0-15

520

112.4

6.7

-97.4

2336.4

279.3

12.2

15-45

520

63.4

-7.4

-370.1

1423.5

203.5

8.9

Exch. K (cmol/kg) 

0-15

538

40.8

5.1

-91.2

863.0

124.7

5.4

15-45

538

38.3

7.6

-93.5

575.0

111.3

4.8

Exch. Mg (cmol/kg) 

0-15

478

44.6

-5.9

-93.1

942.9

149.1

6.8

15-45

478

28.4

-18.6

-94.1

1020.0

129.2

5.9