Fig. 3

Microbial anaerobic methane production activity (A), aerobic methane oxidation activity (B), and anaerobic methane oxidation activity (C). Different letters on the bars indicate significant differences (p < 0.05)
Microbial anaerobic methane production activity (A), aerobic methane oxidation activity (B), and anaerobic methane oxidation activity (C). Different letters on the bars indicate significant differences (p < 0.05)