Table 1 Average water level and soil temperature of three areas of drainage States. “average water level during the growing season”, and “average soil temperature during the growing season” refers to the mean value of hourly water level and soil temperature data collected from May to October, respectively.

From: Impact of drainage on peatland soil environments and greenhouse gas emissions in Northeast China

 

Natural area

Transition area

Drained area

S1

S2

S3

S4

S5

S6

Location

42°20’45"N

126°21’40"E

42°20’52"N

126°21’42"E

42°20’48"N 126°21’51"E

42°20’50"N 126°22’01"E

42°20’43"N 126°22’00"E

42°20’52"N 126°22’14"E

Monthly average water level (cm)

 May

3.00 ± 8.70

1.04 ± 10.32

-14.62 ± 11.48

1.60 ± 4.04

-6.73 ± 3.30

-23.67 ± 5.53

 June

7.15 ± 9.69

5.69 ± 7.92

1.74 ± 4.50

-1.75 ± 4.01

-9.45 ± 7.57

-17.35 ± 4.45

 July

7.77 ± 7.83

5.40 ± 6.83

2.04 ± 3.38

-3.56 ± 2.77

-6.79 ± 7.62

-17.73 ± 3.25

 August

13.01 ± 6.02

12.06 ± 4.66

5.19 ± 3.95

-0.10 ± 3.84

-1.92 ± 7.50

-14.37 ± 4.30

 September

21.69 ± 4.92

20.49 ± 4.44

13.53 ± 4.09

9.11 ± 4.32

-7.69 ± 5.82

-4.96 ± 4.44

 October

13.91 ± 4.04

16.39 ± 3.82

15.24 ± 3.73

12.48 ± 3.78

-2.27 ± 4.96

-5.29 ± 3.64

Average water level during the growing season (cm)

 

11.45 ± 9.16 a

10.59 ± 9.27 b

4.73 ± 10.65 c

3.02 ± 7.08 d

-3.10 ± 8.53 e

-13.47 ± 7.84 f

Monthly average soil temperature (℃)

 May

8.32 ± 2.85

3.75 ± 3.35

1.95 ± 2.39

1.61 ± 0.46

-2.33 ± 0.49

2.31 ± 1.64

 June

12.08 ± 1.16

11.04 ± 0.68

8.94 ± 1.55

7.77 ± 1.85

-6.04 ± 1.44

2.68 ± 0.62

 July

14.17 ± 0.78

12.39 ± 0.98

14.53 ± 3.14

13.44 ± 1.67

-9.29 ± 1.31

7.82 ± 2.12

 August

16.02 ± 0.39

15.17 ± 0.37

18.17 ± 1.39

16.21 ± 0.78

-12.90 ± 0.54

13.13 ± 0.54

 September

13.72 ± 1.43

13.59 ± 1.14

15.39 ± 1.84

13.75 ± 1.47

-12.59 ± 0.62

12.66 ± 0.79

 October

8.97 ± 1.71

9.74 ± 1.37

9.55 ± 2.01

8.57 ± 1.88

-9.35 ± 1.35

8.96 ± 1.46

Average soil temperature during the growing season (℃)

 

12.4 ± 3.11 a

11.30 ± 3.70 b

11.89 ± 5.46 c

10.65 ± 4.83 d

9.06 ± 3.64 e

8.21 ± 4.39 f

  1. Data are presented mean value ± standard error. Different lowercase letters indicate significant differences among the 6 sampling sites (Tukey’s HSD test, α = 0.05, n = 4200).