Articles | Volume 9, issue 1
© Author(s) 2023. This work is distributed underthe Creative Commons Attribution 4.0 License.
Biochar promotes soil aggregate stability and associated organic carbon sequestration and regulates microbial community structures in Mollisols from northeast China
- Final revised paper (published on 25 May 2023)
- Supplement to the final revised paper
- Preprint (discussion started on 04 Nov 2022)
- Supplement to the preprint
Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor |
: Report abuse
CC1: 'Comment on egusphere-2022-1084', Liang Jin, 09 Dec 2022
- AC1: 'Reply on CC1', jing Sun, 20 Dec 2022
RC1: 'Comment on egusphere-2022-1084', Anonymous Referee #1, 02 Mar 2023
- AC2: 'Reply on RC1', jing Sun, 17 Mar 2023
RC2: 'Comment on egusphere-2022-1084', Anonymous Referee #2, 22 Mar 2023
- AC3: 'Reply on RC2', jing Sun, 11 Apr 2023
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Revision (11 Apr 2023) by Raúl Zornoza
AR by jing Sun on behalf of the Authors (20 Apr 2023) Author's response Author's tracked changes Manuscript
ED: Publish subject to minor revisions (review by editor) (20 Apr 2023) by Raúl Zornoza
AR by jing Sun on behalf of the Authors (21 Apr 2023) Author's response Author's tracked changes Manuscript
ED: Publish as is (21 Apr 2023) by Raúl Zornoza
ED: Publish as is (24 Apr 2023) by Jeanette Whitaker(Executive editor)
AR by jing Sun on behalf of the Authors (25 Apr 2023) Manuscript
The authors evaluated the effects of different biochar gradients combined with nitrogen fertilizer on the size, proportion, stability, and carbon content of Mollisols soil aggregates. In addition, they also examine how biochar affects the structure of microbial populations and identify the main factors influencing changes in microbial composition and recommend an optimal biochar application ratio to improve soil quality by modifying aggregates and the soil microbial community structure of Chinese black soils. They concluded that microbial abundance increased significantly when biochar and fertilizer were combined, and soil aggregation and SOC of black soil were significantly improved. The graphic description in the paper is relatively clear and intuitive, which well summarizes the conclusions expressed by the author.
Field experiments are a more objective reflection of actual production issues, and it is a pity that we did not see the author's research on crop yields, but it is still an impressive work, and the findings are essential if we want to improve our understanding of the improvement of soil quality through biochar. However, in my opinion, it is very necessary to make proper revisions before acceptance.
Line 16-23, The summary of the Abstract section, the conclusions seem ambiguous. I suggest that the author provide a clear and reliable conclusion in concise language.
Line 44-47, There is large room for improvement in description and expression. Some sentences are long and contain a lot of repetitive information.
Line 60-61, awkward sentence with controversial expression. Try to explain the limited time for straw decomposition.
Line 87, "Principal ecological activities including…", double check the term or phrase.
Line 215, Please explain original profiled soil?
Line 227, please define "bottom soil".
Line 230, "combined application"? unclear expression.
Line 288-290, Not necessary to simply repeat the numbers or values in the figures.
Line 342, macroaggregates, small macroaggregates? Please be uniform in the text.
Line 410, Among the effects of biochar combined with N fertilizer on microbial communities, the authors suggest the effectiveness of reduced N fertilizer application to improve microbial richness, and the potential negative environmental effects after high doses of N fertilizer application should be further briefly discussed.
Line 418, Please explain the difference between toc and SOC. Both parameters are used.
Line 426-428, Repeated statement.
Line 430-432, the meaning of this sentence is unclear, rephrase the sentences to make the logic smooth and the meaning clear.
Line 454, delete "The PCA showed that".