Thank you for your submission to Biogeosciences. We received two reviews from highly qualified researchers in this field. All agree that this MS addresses a topic of interest to Biogeosciences readers, but several corrections, edits, and suggestions for improvement were offered, especially by Reviewer 2. I will be happy to consider a revised submission that substantively addresses these reviewer comments.

Based on the authors' responses to the reviewer comments in the MS discussion, it sounds as if the proposed revisions are likely to address the concerns raised. Thus, I will be happy to consider a revised submission that substantively addresses these reviewer comments as described in the Authors’ response to reviews. Please pay particular attention to addressing the reviewers' comments, and please be sure that the clarifications provided in the response to reviewers are also incorporated into the manuscript text. Finally, please clearly describe how the text was revised according to the reviewer comments when submitting your revised manuscript.

Thank you for these edits, and for your support of Biogeosciences.

Sincerely,

Michael N. Weintraub
Associate Editor
Biogeosciences

Thank you for your submission to Biogeosciences. Your revised MS has been evaluated by two expert reviewers who are highly qualified in this field, including one of the original reviewers. Both reviewers agree that the original criticisms have been substantively addressed and that this interesting MS is well-written and nearly ready for publication. The new reviewer offered some minor suggestions for improving the manuscript, which I would be grateful if you would incorporate prior to publication.

L31: Change “application” to “addition”.
L66: Change “SOC pool” to “S-SOCP”.
L74: Change “litter” to “leaf litter”.
L131: Not “TOC analyser” but “measured with a TOC analyser”
L 202, 287: Change “-25-cm” to “25 cm”.
L257: Change “onset” to “initial”.
Fig. 2b, Fig. 4 and Fig. 5: The error bar should be bolder.
L376-377, L378-380：please check the reference format.

Please clearly document how the text was revised according to these comments when submitting your revised manuscript. Your efforts to improve this paper are appreciated. Thank you for your hard work, and for your support of Biogeosciences.

Sincerely,

Mike Weintraub
Associate Editor
Biogeosciences