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1. Free Iron and Iron-Reducing Microorganisms in Permafrost and Permafrost-Affected Soils of Northeastern Siberia

   https://doi.org/10.1134/S1064229320100166  

   Rivkina, E. M. ; Fedorov-Davydov, D. G. ; Zakharyuk, A. G. ; Shcherbakova, V. A. ; Vishnivetskaya, T. A. ( October 2020 , Eurasian Soil Science)
2. Assessing the Potential for Mobilization of Old Soil Carbon After Permafrost Thaw: A Synthesis of ¹⁴ C Measurements From the Northern Permafrost Region

   https://doi.org/10.1029/2020GB006672  

   Estop‐Aragonés, Cristian ; Olefeldt, David ; Abbott, Benjamin W. ; Chanton, Jeffrey P. ; Czimczik, Claudia I. ; Dean, Joshua F. ; Egan, Jocelyn E. ; Gandois, Laure ; Garnett, Mark H. ; Hartley, Iain P. ; et al ( September 2020 , Global Biogeochemical Cycles)
3. Modeling Long-Term Permafrost Degradation: HOW FAST PERMAFROST CAN THAW?

   https://doi.org/10.1029/2018JF004655  

   Nicolsky, D. J. ; Romanovsky, V. E. ( June 2018 , Journal of Geophysical Research: Earth Surface)

   Permafrost, as an important part of the Cryosphere, has been strongly affected by climate warming, and a wide spread of permafrost responses to the warming is currently observed. In particular, at some locations rather slow rates of permafrost degradations are noticed. We related this behavior to the presence of unfrozen water in frozen fine‐grained earth material. In this paper, we examine not‐very‐commonly‐discussed heat flux from the ground surface into the permafrost and consequently discuss implications of the presence of unfrozen liquid water on long‐term thawing of permafrost. We conducted a series of numerical experiments and demonstrated that the presence ofmore »fine‐grained material with substantial unfrozen liquid water content at below 0°C temperature can significantly slow down the thawing rate and hence can increase resilience of permafrost to the warming events. This effect is highly nonlinear, and a difference between the rates of thawing in fine‐ and coarse‐grained materials is more drastic for lower values of heat flux incoming into permafrost. For high heat flux, the difference between these rates almost disappears. As near‐surface permafrost temperature increases towards 0°C and the changes in the ground temperature become less evident, the future observation networks should try to incorporate measurements of unfrozen liquid water content in the near‐surface permafrost and heat flux into permafrost in addition to the existing temperature observations.« less
4. Long-term anoxia and release of ancient, labile carbon upon thaw of Pleistocene permafrost: AGED ACETATE IN PLEISTOCENE PERMAFROST

   https://doi.org/10.1002/2015GL066296  

   Ewing, Stephanie A. ; O'Donnell, Jonathan A. ; Aiken, George R. ; Butler, Kenna ; Butman, David ; Windham-Myers, Lisamarie ; Kanevskiy, Mikhail Z. ( December 2015 , Geophysical Research Letters)
5. Terrestrial ecosystem model performance in simulating productivity and its vulnerability to climate change in the northern permafrost region: Modeled Productivity in Permafrost Regions

   https://doi.org/10.1002/2016JG003384  

   Xia, Jianyang ; McGuire, A. David ; Lawrence, David ; Burke, Eleanor ; Chen, Guangsheng ; Chen, Xiaodong ; Delire, Christine ; Koven, Charles ; MacDougall, Andrew ; Peng, Shushi ; et al ( February 2017 , Journal of Geophysical Research: Biogeosciences)