Table 2 Characteristic of sampled paddy soils.

From: Methane emissions from rice paddies are regulated by carbon availability and soil pH along a mean annual temperature gradient

Sample sites

TC (g kg−1)

TN (g kg−1)

C/N ratio

pH

Soil texture

NH₄+ (mg kg−1)

NO₃− (mg kg−1)

Sand (%)

Slit (%)

Clay (%)

S1

11.33

0.88

12.88

5.66

41.11

40.07

18.82

6.71

0.21

S2

18.23

1.3

14.02

6.67

12.05

51.5

36.45

6.32

1.37

S3

30.2

2.24

13.48

5.49

17.63

49.28

33.09

8.18

1.76

S4

14.21

1.25

11.37

6.54

13.31

69.03

17.67

2.88

1.54

S5

12.24

1.1

11.13

6.33

38.85

49.88

11.27

6.57

2.56

S6

17.46

1.61

10.84

6.67

8.62

62.23

29.15

2.6

8.72

S7

15.06

1.39

10.83

7.12

15.74

64.74

19.53

1.55

2.42

S8

25.57

1.47

17.39

7.29

25.36

60.92

13.72

1.91

4.37

S9

16.97

1.74

9.75

7.11

15.15

70.76

14.09

0.91

7.29

S10

16.9

1.74

9.71

6.74

12.51

56.82

30.67

14.35

3.97

S11

15.39

1.89

8.14

6.75

15.46

52.55

31.99

21.88

1.72

S12

8.85

1.12

7.90

6.72

18.43

70.16

11.41

3.22

5.57

S13

24.49

2.32

10.56

5.89

16.16

56.34

27.5

27.16

5.25

S14

14.87

1.51

9.85

5.79

17.89

60.37

21.75

20.35

2.42

S15

10.3

1.04

9.90

7.78

7.99

67.99

24.01

9.2

1.19

S16

14.18

1.41

10.06

6.88

11.11

72.66

16.23

15.07

1.23

S17

26.34

2.65

9.94

6.52

17.44

63.17

19.38

5.16

28.11

S18

15.16

1.56

9.72

6.00

11.82

77.45

10.73

22.98

10.3

S19

31.86

3.24

9.83

6.17

7.43

64.81

27.76

24.49

17.3

S20

11.1

1.28

8.67

5.79

16.18

62.14

21.68

17.97

1.6

S21

18.13

1.96

9.25

5.81

17.74

54.28

27.98

18.28

2.18

S22

11.26

1.18

9.54

5.81

57.98

20.79

21.22

12.55

2.66

S23

15.53

1.52

10.22

5.91

23.75

55.89

20.36

23.39

2.42

S24

24.46

2.46

9.94

5.29

26.36

48.83

24.82

22.05

9.97

S25

12.77

1.35

9.46

5.59

32.66

33.67

33.67

22.54

2.88

S26

12.84

1.29

9.95

5.43

52.32

22.07

25.61

10.18

1.92

S27

20.19

2.24

9.01

5.74

17.75

41.8

40.45

14.94

24.64

S28

24.03

2.54

9.46

5.74

19.97

42.73

37.3

19.75

2.88

S29

23.29

2.24

10.40

5.43

61.04

20.89

18.07

16.65

2.42

S30

11.74

1.27

9.24

5.56

38.26

38.38

23.36

15.1

1.69

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