Variable/Time of Day (Hours)

Location-Growth Stage Combination

RREC/

Post-heading

NEREC/

Pre-heading

NEREC/

Post-heading

CH4 Flux (mg CH4-C m−2∙hr−1)

300

6.31a

0.93 a

1.99 b

800

4.87 b

0.73 bc

1.66 d

1200

5.36 b

0.71 c

1.82 c

1800

4.65 b

0.74 bc

2.19 a

2300

6.99 a

0.78 b

1.82 c

Estimated Daily Emissions (mg CH4-C m−2∙d−1)

300

151.3 b

22.4 a

47.7 b

800

116.9 de

17.6 bc

39.8 d

1200

128.7 cd

17.1 c

43.6 c

1800

111.5 e

17.7 bc

52.5 a

2300

167.8 a

18.7 b

43.7 c

All-times mean

134.1 c

18.7 b

45.7 bc