Methanogenic response to long-term permafrost thaw is determined by paleoenvironment
نویسندگان
چکیده
منابع مشابه
Long-term CO2 production following permafrost thaw
Thawing permafrost represents a poorly understood feedback mechanism of climate change in the Arctic, but with a potential impact owing to stored carbon being mobilized1–5. We have quantified the long-term loss of carbon (C) from thawing permafrost in Northeast Greenland from 1996 to 2008 by combining repeated sediment sampling to assess changes in C stock and >12 years of CO2 production in inc...
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Rapid permafrost thaw and precipitation regime shifts are altering surface and subsurface hydrological processes in arctic and subarctic watersheds. Long-term data (40 years) from two large permafrost watersheds in northeastern China, the Tahe River and Duobukuer River watersheds, indicate that winter baseflows are characterized by significant positive trends of 1.7% and 2.5%·year−1, respective...
متن کاملIncreased nitrous oxide emissions from Arctic peatlands after permafrost thaw.
Permafrost in the Arctic is thawing, exposing large carbon and nitrogen stocks for decomposition. Gaseous carbon release from Arctic soils due to permafrost thawing is known to be substantial, but growing evidence suggests that Arctic soils may also be relevant sources of nitrous oxide (N2O). Here we show that N2O emissions from subarctic peatlands increase as the permafrost thaws. In our study...
متن کاملPhototrophic pigment diversity and picophytoplankton in permafrost thaw lakes
Phototrophic pigment diversity and picophytoplankton in permafrost thaw lakes 1 2 A. Przytulska, J. Comte, S. Crevecoeur, C. Lovejoy, I. Laurion and W. F. Vincent 3 4 Centre d’études nordiques (CEN) and Département de biologie, Université Laval, Québec City, 5 QC G1V 0A6, CANADA 6 Takuvik Joint International Laboratory, Centre National de la Recherche Scientifique (France, 7 CNRS UMI 3376) and ...
متن کاملThe role of watershed characteristics, permafrost thaw, and wildfire
Introduction Conclusions References
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ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 2020
ISSN: 0168-6496,1574-6941
DOI: 10.1093/femsec/fiaa021