Dear Authors:
Thank you for providing your replies to referee comments.
Both referees evaluated positively the value of your study, although they required several clarifications in your manuscript. As suggested by referee #2, you may shorten discussion by being more focused. On the other hand, I recommend including more statements and references of previous studies into introduction (as suggested by referee #1) and adding explanations about your measurement procedure. Both referees expressed concern about the lack of CH4 in your study. I suppose that your reply is enough convincing; please include the justification into your revised manuscript. These clarifications may also improve scientific significance of your study; referee #1 concerned about this. The referee #2 recommended you include photographs of flooded and non-flooded sites. I do not agree with this idea, because it may not be particularly informative. However, if you have good pictures, please include them. I am looking forward to receiving your manuscript after sufficient revision.

Dear Authors:

Thank you for sending your revised manuscript. Your reply seems adequate, and the marked-up manuscript is helpful to find out how it was revised. Finally, I conclude that the manuscript is acceptable for publication.