Articles | Volume 14, issue 11
https://doi.org/10.5194/tc-14-3907-2020
https://doi.org/10.5194/tc-14-3907-2020
Research article
 | 
11 Nov 2020
Research article |  | 11 Nov 2020

Permafrost thawing exhibits a greater influence on bacterial richness and community structure than permafrost age in Arctic permafrost soils

Mukan Ji, Weidong Kong, Chao Liang, Tianqi Zhou, Hongzeng Jia, and Xiaobin Dong

Related subject area

Discipline: Frozen ground | Subject: Biogeochemistry/Biology
Environmental controls on observed spatial variability of soil pore water geochemistry in small headwater catchments underlain with permafrost
Nathan Alec Conroy, Jeffrey M. Heikoop, Emma Lathrop, Dea Musa, Brent D. Newman, Chonggang Xu, Rachael E. McCaully, Carli A. Arendt, Verity G. Salmon, Amy Breen, Vladimir Romanovsky, Katrina E. Bennett, Cathy J. Wilson, and Stan D. Wullschleger
The Cryosphere, 17, 3987–4006, https://doi.org/10.5194/tc-17-3987-2023,https://doi.org/10.5194/tc-17-3987-2023, 2023
Short summary
Responses of dissolved organic carbon to freeze–thaw cycles associated with the changes in microbial activity and soil structure
You Jin Kim, Jinhyun Kim, and Ji Young Jung
The Cryosphere, 17, 3101–3114, https://doi.org/10.5194/tc-17-3101-2023,https://doi.org/10.5194/tc-17-3101-2023, 2023
Short summary
Molecular biomarkers in Batagay megaslump permafrost deposits reveal clear differences in organic matter preservation between glacial and interglacial periods
Loeka L. Jongejans, Kai Mangelsdorf, Cornelia Karger, Thomas Opel, Sebastian Wetterich, Jérémy Courtin, Hanno Meyer, Alexander I. Kizyakov, Guido Grosse, Andrei G. Shepelev, Igor I. Syromyatnikov, Alexander N. Fedorov, and Jens Strauss
The Cryosphere, 16, 3601–3617, https://doi.org/10.5194/tc-16-3601-2022,https://doi.org/10.5194/tc-16-3601-2022, 2022
Short summary
High nitrate variability on an Alaskan permafrost hillslope dominated by alder shrubs
Rachael E. McCaully, Carli A. Arendt, Brent D. Newman, Verity G. Salmon, Jeffrey M. Heikoop, Cathy J. Wilson, Sanna Sevanto, Nathan A. Wales, George B. Perkins, Oana C. Marina, and Stan D. Wullschleger
The Cryosphere, 16, 1889–1901, https://doi.org/10.5194/tc-16-1889-2022,https://doi.org/10.5194/tc-16-1889-2022, 2022
Short summary
Improved ELMv1-ECA simulations of zero-curtain periods and cold-season CH4 and CO2 emissions at Alaskan Arctic tundra sites
Jing Tao, Qing Zhu, William J. Riley, and Rebecca B. Neumann
The Cryosphere, 15, 5281–5307, https://doi.org/10.5194/tc-15-5281-2021,https://doi.org/10.5194/tc-15-5281-2021, 2021
Short summary

Cited articles

Anderson, M.: Distance–based tests for homogeneity of multivariate dispersions, Biometrics, 62, 245–253, 2006. 
Anderson, M. J.: A new method for non–parametric multivariate analysis of variance, Austral Ecol., 26, 32–46, 2001. 
Archer, E.: RfPermute: Version 2.1.5 to Accompany R Journal Paper, Zenodo, https://doi.org/10.5281/zenodo.159219, 2016. 
Bardgett, R. D. and Walker, L. R.: Impact of coloniser plant species on the development of decomposer microbial communities following deglaciation, Soil Biol. Biochem., 36, 555–559, 2004. 
Brown, M. B. and Forsythe, A. B.: Robust tests for the equality of variances, J. Am. Stat. Assoc., 69, 364–367, 1974. 
Download
Short summary
Old permafrost soil usually has more carbohydrates, while younger soil contains more aliphatic carbons, which substantially impacts soil bacterial communities. However, little is known about how permafrost age and thawing drive microbial communities. We found that permafrost thawing significantly increased bacterial richness in young permafrost and changed soil bacterial compositions at all ages. This suggests that thawing results in distinct bacterial species and alters soil carbon degradation.