Fig. 3: Survey of drainage canal CH4 concentrations and δ13C-CH4 reveal the impact of CH4 oxidation on canal CH4 emissions. | Nature Communications

Fig. 3: Survey of drainage canal CH4 concentrations and δ13C-CH4 reveal the impact of CH4 oxidation on canal CH4 emissions.

From: Fate of methane in canals draining tropical peatlands

Fig. 3

A Curve showing the relationship between canal water δ13C-CH4 and estimated percent CH4 oxidized across the mean (black line) and ± 1 standard deviation (shaded region) of the laboratory derived αox value. B, C Surface water δ13C-CH4 and dissolved CH4 concentration across the studied canals (n = 34). D Estimates of the percent of CH4 oxidized versus estimated diffusive CH4 flux across the studied canals. For panels B–D each dot represents a canal. The shaded region of panel D represents the 95% confidence interval associated with the linear relationship. Dissolved CH4 concentration and estimated diffusive CH4 flux are shown on a log10 scale in panels C and D. Source data are provided as a Source Data file.

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