B067
Vulnerability of Permafrost Carbon to Climate Change

Session ID#: 159184

Session Description:
Permafrost carbon (C) remains one of the most important C cycle feedbacks to climate, with implications for global society. Permafrost region soils contain 1440-1600 billion tons of C; release of just a fraction of this pool as carbon dioxide and methane can accelerate climate change. Permafrost degradation can change ecosystem C storage by enhancing microbial activity and ecosystem respiration, but can also stimulate plant growth and increase C stored in vegetation and surface soil. This session invites papers that examine factors causing losses and gains in permafrost C that contribute to current observations and future projections of changing permafrost C through time. Papers may address any aspect of this topic from microbial communities to the global scale, using a range of field or laboratory measurements or modeling to detect and forecast permafrost thaw and the influence on the C cycle and future climate.
Index Terms:

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

Primary Convener:  Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Convener:  Allison Kelley, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Student/Early Career Convener:  Allison Kelley, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
 
Effect of crustose lichen (Ochrolecia frigida) on soil CO2 emission in a sphagnum moss community underlain by permafrost, western Alaska (1043469)
Yongwon Kim1, Sang-Jong Park2 and Bang-Yong Lee2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Korea Polar Research Institute, Division of Atmospheric Sciences, Incheon, South Korea
 
Analysis of resolution-induced differences in soil - hydrology - vegetation interactions in the Arctic using state-of-the-art land surface model (1044060)
Meike Schickhoff1, Philipp de Vrese1 and Victor Brovkin1,2, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)University of Hamburg, Center for Earth System Research and Sustainability, Hamburg, Germany
 
Role of Dissolution-Precipitation of Mineral Organic Carbon Interactions on Carbon Loss and Gain upon Permafrost Thaw (Invited) (1047297)
Sophie Opfergelt1, Arthur Monhonval1, Hélène Dailly1, Edward Schuur2 and Catherine Hirst1, (1)Université Catholique de Louvain, Earth and Life Institute, Environmental Sciences, Louvain-La-Neuve, Belgium, (2)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
 
Divergent Trajectory of Soil Autotrophic and Heterotrophic Respiration upon Permafrost Thaw (1047465)
Yuanhe Yang1, Guanqin Wang1, Leiyi Chen1, Dianye Zhang2, Shuqi Qin1, Yunfeng Peng1, Guibiao Yang1, Jianchun Yu2, Bin Wei2 and Luyao Kang2, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)Institute of Botany, Chinese Academy of Sciences, Beijing, China
 
Permafrost Degradation in the Koyukuk River System and the Timescale Dependence of Sulfur-Carbon-Climate Feedbacks (1066213)
Preston Cosslett Kemeny1, Gen Li2, Madison Douglas3, Jess F Adkins4, William Berelson5, Nathan F Dalleska6, Michael P. Lamb7, William Larsen8, John S Magyar9, Joel C Rowland10, Isabel Smith11, Mark Torres8, Samuel Webb12, A. Joshua West5 and Woodward W Fischer13, (1)The University of Chicago, Department of the Geophysical Sciences, Chicago, United States, (2)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (3)California Institute of Technology, Pasadena, United States, (4)California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States, (5)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (6)CALTECH, Pasadena, CA, United States, (7)California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, (8)Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, TX, United States, (9)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (10)Los Alamos National Laboratory, Los Alamos, NM, United States, (11)University of Southern California, Los Angeles, United States, (12)Stanford University, Stanford Synchrotron Radiation Lightsource, Stanford, United States, (13)California Institute of Technology, Pasadena, CA, United States
 
Soil Organic Carbon and Microbial Composition Effects on Carbon Mineralization in Laboratory Warming Experiments (1076315)
Mark McDonald1, Roser Matamala2, Francisco Calderon3, Chien-Lu Ping4 and Julie D Jastrow2, (1)Argonne National Laboratory, Argonne, IL, United States, (2)Argonne National Laboratory, Environmental Science Division, Lemont, United States, (3)United States Department of Agriculture, USDA-ARS Central Great Plains Research Station, Akron, CO, United States, (4)Univ Alaska Fairbanks, Palmer, United States
 
The Impacts of a Changing Permafrost Tundra Ecosystem on Dissolved Organic Carbon Age and Concentration in Surface and Groundwater in a Long-Term Experiment (1082409)
Allison Kelley1, Christopher Ebert2, Justin Ledman3, Zev Axler2 and Edward Schuur1, (1)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (2)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (3)University of Alaska Fairbanks, Fairbanks, United States
 
Changes in soil carbon stocks and fractions with warming under different tundra vegetation types in northern Sweden (1084420)
YouJin Kim1, Mats P Björkman2, Robert G Bjork2, Yong-Hoe Choe3 and Ji Young Jung4, (1)Korea Polar Research Institute, Devision of Life Sciences, Incheon, South Korea, (2)University of Gothenburg, Department of Earth Sciences, Gothenburg, Sweden, (3)Korea Polar Research Institute, Division of Life Sciences, Incheon, South Korea, (4)Korea Polar Research Institute, Incheon, Korea, Republic of (South)
 
Warming or Cooling? The Impact of Extreme Summer Rainfall on Permafrost Soils (1106842)
Alexandra Hamm1, Ahmad Jan2, Rúna Magnússon3 and Andrew Frampton1, (1)Stockholm University, Stockholm, Sweden, (2)Oak Ridge National Laboratory, Watershed Systems Modeling Group, Environmental Sciences Division, Oak Ridge, United States, (3)Wageningen University and Research Center, Wageningen, Netherlands
 
Development of a Framework for Coupled Thermal, Hydrologic, and Biogeochemical Modeling to Predict Permafrost Methane Emissions (1114059)
Michael Nole1, Jennifer Frederick1, Chuck Smallwood1, David Fukuyama2, Louise Melanie Farquharson3, Dmitry Nicolsky4 and Peter B Flemings5, (1)Sandia National Laboratories, Albuquerque, NM, United States, (2)The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States, (3)Geophysical Institute Permafrost Laboratory, University of Alaska, Fairbanks, Fairbanks, United States, (4)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, (5)The University of Texas at Austin, Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States
 
Permafrost Pathways: Connecting science, people, and policy to advance understanding of the local to global impacts of permafrost thaw and to develop just and equitable responses (1119443)
Susan Natali1, Brendan M Rogers2, John P Holdren3, Robin Bronen4, Patricia Cochran5, Kyle Andreas Arndt1,6, Ben Baldwin7, Joel Clement3, Greg Fiske1, Helene Genet8, Jessica Howard1, Elchin Jafarov1, Jennifer Spence9, Melissa Shapiro1, Rachael Treharne10, Anna-Maria Virkkala10, Jennifer Watts1 and Brooke Woods1, (1)Woodwell Climate Research Center, Falmouth, United States, (2)University of California Irvine, Irvine, United States, (3)Harvard Kennedy School Belfer Center for Science, Arctic Initiative, Cambridge, MA, United States, (4)Alaska Institute for Justice, Anchorage, AK, United States, (5)Alaska Native Science Commission, Anchorage, United States, (6)Washington, DC, United States, (7)Alaska Institute for Justice, Anchorage, United States, (8)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (9)Harvard Kennedy School Belfer Center for Science, Arctic Initiative, Cambridge, United States, (10)Woodwell Climate Research Center, Falmouth, MA, United States
 
Accelerated organic carbon mobilization from thaw slumps on the Taymyr Pensinula quantified using remote sensing (1119999)
Simon Zwieback, University of Alaska Fairbanks, Fairbanks, AK, United States, Philipp Bernhard, ETH Zurich, Zurich, Switzerland and Irena Hajnsek, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
 
Methane emissions show exponential inverse relationship with electrical resistivity from discontinuous permafrost wetlands in Alaska (1130109)
Nicholas Hasson1, Katey M Walter Anthony1, Clayton Elder2, Baptiste Dafflon3, Charles E Miller4, Alexander L Kholodov5, Sergei Rybakov5, Simon Peterson6, Peter Anthony7 and Ronald P Daanen8, (1)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, United States, (4)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, United States, (5)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, (6)Honeywell International Inc., Minneapolis, United States, (7)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, United States, (8)DGGS, Fairbanks, AK, United States
 
Strategic expansion of the Arctic-Boreal carbon flux network (1136745)
Kyle Andreas Arndt1, Torben R Christensen2, Eugenie Susanne Euskirchen3, Laure Gandois4, Mathias Goeckede5, Manuel Helbig6, Elyn Humphreys7, Annalea Lohila8, Trofim Maximov9, Patrick Murphy1, Martijn Pallandt10, Roman E Petrov11, Anatoly Stanislavovich Prokushkin12, Brendan M Rogers1, Alexandre Roy13, Edward Schuur14, Oliver Sonnentag15, Margaret S Torn16, Andrej Varlagin17, Anna Virkalla1, Donatella Zona18 and Susan Natali1, (1)Woodwell Climate Research Center, Falmouth, United States, (2)Lund Univ, Lund, Sweden, (3)University of Alaska Fairbanks, Fairbanks, United States, (4)Institut national polytechnique de Toulouse, Toulouse, France, (5)MPI Biogeochemistry, Jena, Germany, (6)Dalhousie University, Department of Physics and Atmospheric Science, Halifax, NS, Canada, (7)Carleton University, Ottawa, ON, Canada, (8)Finnish Meteorological Institute, Climate System Research, Helsinki, Finland, (9)Institute for Biological Problems of Cryolithozone, Yakutsk, Russia, (10)Max Planck Institute for Biogeochemistry, Jena, Germany, (11)Institute for Biological Problems of Cryolithozone, Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia, (12)Institute of Forest SB RAS, Krasnoyarsk, Russia, (13)Université du Québec à Trois-Rivières, Centre de recherche sur les interactions bassins versants-écosystèmes aquatiques (RIVE), Trois-Rivières, QC, Canada, (14)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (15)Université de Montréal, Département de géographie, Montréal, QC, Canada, (16)Berkeley Lab/UC Berkeley, Berkeley, CA, United States, (17)A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia, (18)San Diego State University, San Diego, CA, United States
 
Machine learning models inaccurately predict current and future high-latitude C balances (1139788)
Ian Shirley1, Zelalem A Mekonnen2, Robert F Grant3, Baptiste Dafflon1 and William J Riley4, (1)Lawrence Berkeley National Laboratory, Berkeley, United States, (2)University of Alberta, Edmonton, AB, Canada, (3)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (4)Lawrence Berkeley National Laboratory, Climate & Ecosystem Sciences Division, Berkeley, United States
 
Blinded by the Light: Seasonal Sensitivity of Arctic River Carbon to Photo- and Biodegradation (1175649)
Jansen Nipko1, Zachary Aanderud1, Benjamin W Abbott1, William B Bowden2, Anna Eichert1, Amelia Grose3, Cameron Jones4, Raymond Lee5, Abigail Rec6, Jonathan A O'Donnell7, Gracie Shoell1, Arial J. Shogren8, Jackson VerSteeg1, Jay P Zarnetske9 and Qiwen Zhang1, (1)Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States, (2)University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, VT, United States, (3)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (4)Kent University, Department of Geology and Earth Sciences, Kent, United States, (5)Washington College, Department of Environmental Science and Studies, Chestertown, United States, (6)University of Vermont, Rubenstein School of Natural Resources, Burlington, VT, United States, (7)National Park Service Fairbanks, Fairbanks, United States, (8)University of Alabama, Department of Biological Sciences, Tuscaloosa, United States, (9)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States
 
Vegetation Effects on Soil Organic Matter Quality in High Arctic Ecosystems (1177554)
Julianah Adediji, Queen's University, Kingston, ON, Canada, Joanne K. Heslop, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Nanor Momejian, Queens University, Kingston, Canada, Melissa J Lafreniere, Queens University, Geography and Planning, Kingston, ON, Canada and Neal A Scott, Queen's University, Geography and Planning, Kingston, ON, Canada
 
A time series of soil carbon pool change following permafrost thaw (1183200)
Emma Lathrop1, Craig Robert See2, Allison Kelley3, Heidi Rodenhizer4, Christopher Ebert2, Justin Ledman5 and Edward Schuur3, (1)Northern Arizona University, Flagstaff, AZ, United States, (2)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (4)Woodwell Climate Research Center, Falmouth, United States, (5)University of Alaska Fairbanks, Fairbanks, United States
 
Net Ecosystem Exchange Across the Arctic-Boreal Zone: Long Term Trends and Site-Level Drivers of Interannual Variability (Invited) (1184342)
Craig Robert See1, Anna-Maria Virkkala2, Marguerite Mauritz3, Susan Natali2, Heidi Rodenhizer2, Brendan M Rogers2, Edward Schuur4 and The Permafrost Carbon Network Flux Synthesis Group, (1)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (2)Woodwell Climate Research Center, Falmouth, United States, (3)University of Texas at El Paso, Biological Sciences, El Paso, United States, (4)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
 
Implications of Fire Disturbance on Soil Carbon Cycling and Permafrost in Black Spruce Forests of Interior Alaska: A Case Study at Hess Creek (1192654)
Christina Minions1, Jennifer Watts2, Claudia I Czimczik3, Shawn Pedron4, Alexander L Kholodov5, Nicholas Hasson6, Giselle Jimenez4, Valeria Briones2, Bradley Gay7, Helene Genet8, Andrew Mullen9 and Susan Natali2, (1)University of Alaska Anchorage, Anchorage, AK, United States, (2)Woodwell Climate Research Center, Falmouth, United States, (3)Univ of California, Irvine, Irvine, CA, United States, (4)University of California Irvine, Irvine, CA, United States, (5)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, (6)University of Alaska Fairbanks, Fairbanks, AK, United States, (7)NASA Goddard Space Flight Center, Biospheric Sciences Laboratory: Code 618, Greenbelt, United States, (8)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (9)Woodwell Climate, Woods Hole, United States
 
Quantifying Feedback Sensitivities of Permafrost Degradation and Carbon Release with Earth Observation Data and Feedback Neural Networks (1200439)
Bradley Gay1,2, Amanda Hildt Armstrong3, Andreas Zuefle1, Neal J. Pastick4, John J Qu5 and Paul M Montesano6, (1)George Mason University, Fairfax, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States, (3)Universities Space Research Association, Columbia, MD, United States, (4)KBR, contractor to the USGS Earth Resources Observation Science Center, Sioux Falls, United States, (5)George Mason University, Fairfax, VA, United States, (6)NASA Goddard Space Flight Center | SSAI, Greenbelt, MD, United States
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