Table 1 Comparison of diel CH4 flux and some environmental factors in different seasons
From: Temporal variation of methane flux from Xiangxi Bay of the Three Gorges Reservoir
|  | air temperature (°C) | surface water temperature (°C) |  | CH4 flux | |||
|---|---|---|---|---|---|---|---|
time | range | variation amplitude | range | variation amplitude | surface water pH | Range (mg m−2 h−1) | Average (mg/m2/d) |
April 27–28, 2011 | 18.0 – 34.7 | 16.7 | 22.2 – 18.8 | 3.4 | 8.7–8.9 | 0.064–0.664 | 7.464 |
August 23–24, 2010 | 36.4 – 26.9 | 9.5 | 30.2 – 27.2 | 3.0 | 8.3–8.8 | 0.041–0.219 | 2.064 |
October 4–5, 2010. | 27.3 – 15.7 | 11.6 | 24.4 – 23.2 | 1.2 | 7.6–8.2 | 0.000–0.202 | 1.944 |
