B43C:
Vulnerability of Permafrost Carbon to Climate Change III Posters

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Session ID#: 13570

Session Description:
Permafrost zone soils contain between 1330-1580 Pg of carbon. Permafrost degradation can change ecosystem carbon storage by enhancing microbial activity and ecosystem respiration, but can also stimulate plant growth and increase carbon stored in vegetation and surface soil. While increased permafrost carbon emissions in a warming climate are more likely to be gradual and sustained we need a better understanding of the magnitude and timing of greenhouse gas emissions from these remote regions to fully estimate the potential feedback from permafrost carbon to climate change.

This session invites papers that examine factors causing losses and gains in ecosystem carbon storage relating to the magnitude, timing and form of carbon release from permafrost. Papers may address any aspect of this topic from microbial communities to the global scale, using a range of measurements or modeling to detect and forecast permafrost thaw and the influence on the carbon cycle and future climate.

Primary Convener:  Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States
Conveners:  Claire C Treat, USGS Geological Survey, Menlo Park, CA, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Chairs:  Claire C Treat, USGS Geological Survey, Menlo Park, CA, United States and Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States
OSPA Liaison:  Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
0702 Permafrost [CRYOSPHERE]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Long term effects of permafrost thaw and wildfire on peatland carbon cycling (120659)
David Olefeldt1, Cristian Estop Aragones2, Katheryn Burd2, Carolyn Gibson2 and Liam Heffernan3, (1)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (2)University of Alberta, Edmonton, AB, Canada, (3)Uppsala University, Department of Ecology and Genetics/Limnology, Uppsala, Sweden
Contrasting approaches to determine the impact of permafrost thaw on C cycling in northern peatlands (124374)
Liam Heffernan, Uppsala University, Department of Ecology and Genetics/Limnology, Uppsala, Sweden, Cristian Estop Aragones, University of Alberta, Edmonton, AB, Canada, Christian Blodau, University of Münster, Münster, Germany and David Olefeldt, University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada
The permafrost carbon inventory on the Tibetan Plateau: a new evaluation using deep sediment cores (130120)
Yuanhe Yang1, Jinzhi Ding1, Fei Li2, Guibiao Yang2 and Leiyi Chen2, (1)Chinese Academy of Sciences, Beijing, China, (2)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China
Origin of carbon released from ecosystems affected by permafrost degradation in Northern Siberia (156570)
Laure Gandois, CNRS, EcoLab, Paris Cedex 16, France; EcoLab, Université de Toulouse, CNRS, Castanet Tolosan, France, Alison Hoyt, Stanford University, Earth System Science, Stanford, CA, United States, Xiaomei Xu, University of California Irvine, Earth System Science, Irvine, United States, Christine Hatte, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, Roman Teisserenc, EcoLab France, Castanet Tolosan, France and Nikita Tananaev, Russian Academy of Sciences Siberian Branch, Melnikov Permafrost Institute Igarka Geocryology Laboratory, Igarka, Russia
Linking temperature sensitivity of soil CO2 release to substrate, environmental and microbial properties across alpine permafrost ecosystems (130218)
Leiyi Chen1, Jinzhi Ding1 and Yuanhe Yang2, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)Chinese Academy of Sciences, Beijing, China
Soil Organic Carbon Storage in Five Different Arctic Permafrost Environments (130610)
Matthias Fuchs1,2, Guido Grosse3,4, Benjamin M Jones5, Georgy Maximov6 and Jens Strauss3, (1)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, United States, (2)GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany, (4)University of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germany, (5)USGS Alaska Science Center, Anchorage, AK, United States, (6)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia
Potential rates of anaerobic decomposition and experimental priming effects in thawed peats from discontinuous permafrost in western Canada (133098)
Cristian Estop Aragones, University of Alberta, Edmonton, AB, Canada, Liam Heffernan, Uppsala University, Department of Ecology and Genetics/Limnology, Uppsala, Sweden and David Olefeldt, University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada
Thawing Permafrost in Arctic Peatlands Leads to Changing Vegetation Composition, Decline in Plant Biodiversity, but Little Change in Biomass (136699)
Sarah Rose Vining, University of Arizona, Dept. of Soil, Water, and Environmental Science, Tucson, AZ, United States, Moira Hough, University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, United States, Amelia McClure, Wellesley College, Wellesley, MA, United States, Scott R Saleska, University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, AZ, United States and Virginia Isabel Rich, Ohio State University, Department of Microbiology, Columbus, United States
Survey of Permafrost Thaw Influence on Surface Water Dissolved Organic Matter in Sub-Arctic Alaska (136874)
Kristin Gagne1, Katey M Walter Anthony2 and Jennifer Guerard1, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
Modelling the process-based controls of long term CO2 exchange in High Arctic heath ecosystems (137101)
Wenxin Zhang1, Per-Erik Jansson1 and Bo Elberling2, (1)Center For Permafrost (CENPERM), Department of Geosciences and Nature Management, University of Copenhagen, Copenhagen, Denmark, (2)Center For Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
Distributive features of dissolved organic carbon (DOC) in the Source Area of the Yellow River on northeastern Qinghai-Tibet Plateau, China (144710)
Qiang Ma, Chinese Academy of Sciences, State Key Laboratory of Frozen Soils Engineering, Lanzhou, China
Nitrogen controls the lability of Alaska Arctic soil carbon (149018)
Lori A Ziolkowski, University of South Carolina Columbia, School of Earth, Ocean and Environment, Columbia, SC, United States and Hongyu Li, University of South Carolina Columbia, Columbia, SC, United States
Methane and Carbon Dioxide Emissions during the Seasonal Permafrost Thaw at the Bonanza Creek Research Forest: Results from the May 2016 Field Campaign (151183)
Emily Lynn Wilson1, AJ DiGregorio2, Lynn M Carter1, Eugenie Susanne Euskirchen3, Colin Edgar4, Christine Hoffman5, Anand K Ramanathan6, Jianping Mao7, Bryan N Duncan8, Lesley Ott9, Qing Liang10, Katherine A Melocik11 and Compton J Tucker1, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)American University, Washington, DC, United States, (3)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, (4)Univesity of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, (5)University of California Merced, Applied Mathematics, Merced, CA, United States, (6)Earth System Science Interdisciplinary Center, COLLEGE PARK, MD, United States, (7)University of Maryland and NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, MD, United States, (9)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (10)NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, United States, (11)NASA Goddard Space Flight Center, Science Systems and Applications, Inc., Greenbelt, MD, United States
Mechanisms of vegetation protective effect on thermal state of permafrost in Alaska. (155071)
Alexander L Kholodov1, Susan Natali2, Michael M Loranty3 and Vladimir E Romanovsky1, (1)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, (2)Woodwell Climate Research Center, Falmouth, United States, (3)Colgate University, Geography, Hamilton, NY, United States
Chemical characterization of dissolved organic matter in an alpine stream from thawing and collapsing permafrost to Qinghai Lake (159621)
Yinghui Wang, Peking University, Beijing, China and Yunping Xu, Peking University, Shanghai, China; Shanghai Ocean University, College of Marine Sciences, Shanghai, China
Aged dissolved organic carbon exported from rivers of the Third Pole (159641)
Bin Qu1, Mika Sillanpää2, Shichang Kang3, Aron Stubbins4, Chaoliu Li3, Yan Fangping5, Kelly S Aho6 and Peter A Raymond7, (1)Lappeenranta University of Technology, Lappeenranta, Finland, (2)Laboratory of Green Chemistry, Lappeenranta University of Technology, Mikkeli, Finland, (3)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (4)Northeastern University, Marine and Environmental Sciences, Boston, MA, United States, (5)CAREERI/CAS Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou, China, (6)Yale University, School of the Environment, New Haven, CT, United States, (7)Yale University, New Haven, United States
Accelerated rates of in situ microbial activity after permafrost collapse estimated from a porewater isotope model (161907)
Mark P Waldrop, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States, Rebecca Bergquist Neumann, University of Washington Seattle Campus, Department of Civil & Environmental Engineering, Seattle, United States, Miriam Jones, U.S. Geological Survey, Reston, United States, Kristen Manies, US Geological Survey, Menlo Park, CA, United States, Jack W Mcfarland, US Department of Interior, Geological Survey, Menlo Park, United States, Steven Blazewicz, Lawrence Livermore National Laboratory, Livermore, United States and Merritt R Turetsky, University of Guelph, Department of Integrative Biology, Guelph, ON, Canada
Response of organic matter quality in permafrost soils to warming (165142)
César Plaza, Spanish National Research Council (CSIC), Madrid, Spain, Elaine Pegoraro, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Detecting Changes in a Permafrost Peatland from 1943 to 2013 with Historical and Recent Remote Sensing Data. (166151)
Andreas Persson, Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden and John Connolly, DCU St. Patrick's Campus, Department of Geography, Dublin, Ireland
Early and late season warming affects nitrogen dynamics in a polygonal tundra landscape: Analyses using ecosys and NGEE-Arctic observations in Barrow, Alaska (168033)
William J Riley1, Robert F Grant2, Nicholas Bouskill3, Baptiste Dafflon1, David E Graham4, Zelalem A Mekonnen1, Ji-Won Moon5, Jinyun Tang6 and Haruko M Wainwright7, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)University of Alberta, Edmonton, AB, Canada, (3)Lawrence Berkeley National Laboratory, Ecology, Berkeley, CA, United States, (4)Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States, (5)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (6)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, United States, (7)Lawrence Berkeley National Laboratory, Berkeley, United States
Estimating potential damping of cryoturbation on permafrost carbon emissions using a perturbed parameters approach in a land surface model (170186)
Shijie Shu, University of Illinois at Urbana Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Umakant Mishra, Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, James Tremper Randerson, University of California Irvine, Earth System Science, Irvine, CA, United States, Yujie He, University of California Irvine, Department of Earth System Science, Irvine, CA, United States, Charles Koven, Lawrence Berkeley National Laboratory, Climate & Ecosystem Sciences Division, Berkeley, United States, Dr. Forrest M Hoffman, PhD, Oak Ridge National Laboratory, Oak Ridge, TN, United States and Atul K Jain, University of Illinois at Urbana Champaign, Urbana, United States
Estimating the spatial distribution of soil organic matter density and geochemical properties in a polygonal shaped Arctic Tundra using core sample analysis and X-ray computed tomography (171433)
Florian Soom1, Craig Ulrich2, Baptiste Dafflon2, Yuxin Wu3, Timothy J Kneafsey2, Robin D. Lopez2, John Peterson2 and Susan S. Hubbard4, (1)Lawrence Berkeley National Laboratory (LBNL), Berkeley, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (4)Oak Ridge National Laboratory, Oak Ridge, TN, United States
Evaluating Spatiotemporal Differences in Methane Fluxes on the North Slope of Alaska via Eddy Covariance Footprint Modelling (173544)
Kassandra Reuss-Schmidt, University of Sheffield, Animal and Plant Sciences, Sheffield, United Kingdom and Donatella Zona, San Diego State University, Department of Biology, San Diego, United States
Effect of permafrost thaw on carbon fluxes, litter decomposition and ecohydrology in a sub-arctic peatland: increased uncertainty from transitional dynamics (182881)
Avni Malhotra1,2, Nigel T Roulet2, Tim R Moore2 and Juul Limpens3, (1)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (2)McGill University, Geography, Montreal, QC, Canada, (3)Wageningen University and Research Center, Wageningen, Netherlands
Long-term Priming-induced Changes in Permafrost Soil Organic Matter Decomposition (183327)
Elaine Pegoraro, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, Rosvel G Bracho, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Investigating the relationship between peat biogeochemistry and above-ground plant phenology with remote sensing along a gradient of permafrost thaw. (185168)
Anthony Garnello1, Dennis G Dye2, Rian Bogle3, Moira Hough1, Nicole Raab4, Sky Dominguez1, Virginia Isabel Rich5, Patrick M Crill6 and Scott R Saleska7, (1)University of Arizona, Ecology and Evolutionary Biology, Tucson, AZ, United States, (2)USGS Astrogeology Science Center, Flagstaff, United States, (3)USGS Astrogeology Science Center, Flagstaff, AZ, United States, (4)Ohio State University Main Campus, Columbus, OH, United States, (5)Ohio State University, Department of Microbiology, Columbus, United States, (6)Stockholm University, Dept. of Geological Sciences and Bolin Centre for Climate Research, Stockholm, Sweden, (7)University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, AZ, United States
Response of tundra plants to environmental variation during seven years of experimentally-induced permafrost thaw (190468)
Verity G Salmon, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Biogeochemical controls on microbial CH4 and CO2 production in Arctic polygon tundra (192149)
Jianqiu Zheng, Pacific Northwest National Laboratory, Richland, WA, United States
Distribution and Degradation State of Soil Organic Carbon Stocks in Ice Wedge Polygons of the Arctic Coastal Plain, Alaska (194484)
Julie D Jastrow1, Chien-Lu Ping2, Clara Beatrix Deck3, Roser Matamala1, Timothy W Vugteveen4, Jeremy S Lederhouse4 and Gary J Michaelson2, (1)Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, (2)University of Alaska Fairbanks, Palmer, AK, United States, (3)College of Wooster, Wooster, OH, United States, (4)Argonne National Laboratory, Environmental Science Division, Lemont, IL, United States
Microbial Community Response to Warming and Correlations to Organic Carbon Degradation in an Arctic Tundra Soil (195846)
Ziming Yang1,2, Sihang Yang3, Jizhong Zhou4, Stan D Wullschleger2, David E Graham5, Yunfeng Yang3 and Baohua Gu2, (1)Oakland University, Department of Chemistry, Rochester, United States, (2)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (3)Tsinghua University, School of Environment, Beijing, China, (4)University of Oklahoma, Norman, United States, (5)Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States

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