B128
Vulnerability of Permafrost Carbon to Climate Change

Session ID#: 81978

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.
Co-Sponsor(s):
  • WCRP: World Climate Research Programme -
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]
0702 Permafrost [CRYOSPHERE]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]

Primary Convener:  Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
Convener:  Elaine Pegoraro, Northern Arizona University, Flagstaff, AZ, United States
Primary Liaison:  Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
 
Undecomposed Organic Particles Dominate the Carbon Storage in Permafrost Soils of the Lena River Delta, Arctic Russia (486264)
Isabel Prater1, Sebastian Zubrzycki2, Franz Buegger3, Lena Zoor-Füllgraff1 and Carsten W Mueller1, (1)Technical University of Munich, Soil Science, Freising, Germany, (2)University of Hamburg, Hamburg, Germany, (3)Helmholtz Center Munich, Biochemical Plant Pathology, Oberschleissheim, Germany
 
High-latitude terrestrial regions remain a CO2 sink over 1990-2015 (Invited) (488936)
Anna-Maria Virkkala1, Juha Antero Aalto1, Torbern Tagesson2, Claire C Treat3, Aleksi Lehtonen4, Brendan M Rogers5, Susan Natali6, Miska Luoto1 and CO2 synthesis group, (1)University of Helsinki, Helsinki, Finland, (2)University of Copenhagen, Copenhagen, Denmark, (3)University of New Hampshire, Durham, NH, United States, (4)Natural Resources Institute, Helsinki, Finland, (5)University of California Irvine, Irvine, CA, United States, (6)Woods Hole Science Center, Falmouth, MA, United States
 
DOM Composition and Biodegradation from Diverse Permafrost End-members (490242)
Erin MacDonald1, Suzanne Tank2, Ryan H.S. Hutchins3, Steve Kokelj4, Duane G Froese5 and Brian D Lanoil2, (1)University of Alberta, Edmonton, AB, Canada, (2)University of Alberta, Biological Sciences, Edmonton, AB, Canada, (3)Université du Québec à Montréal, Département des sciences biologiques, Montreal, QC, Canada, (4)Northwest Territories Geological Survey, Yellowknife, NT, Canada, (5)University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada
 
Inter-annual Variability of CO2 and CH4 Fluxes of a Polygonal Tundra Landscape in the Siberian Arctic (490619)
David Holl1, Christian Wille2, Torsten Sachs3, Julia Boike4, Mikhail Grigoriev5, Irina Fedorova6 and Lars Kutzbach1, (1)Universität Hamburg, Center for Earth System Research and Sustainability, Institute of Soil Science, Hamburg, Germany, (2)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)GFZ German Research Centre for Geosciences, Potsdam, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (5)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia, (6)St. Petersburg State University, St. Petersburg, Russia
 
Soil warming leads to stimulate soil CO2 efflux in tundra ecosystem, Seward Peninsula of western Alaska (494250)
Yongwon Kim, University of Alaska Fairbanks, Fairbanks, AK, United States, Sang-Jong Park, Korea Polar Research Institute, Division of Climate Change, Incheon, South Korea, John E Walsh, University of Alaska Fairbanks, Fairbanks, United States and Bang-Yong Lee, Korea Polar Research Institute, Incheon, Korea, Republic of (South)
 
Controls on organic matter degradation in thawing permafrost peatlands and subsequent greenhouse gas emissions (495674)
Roya AminiTabrizi1, Rachel Wilson2, Suzanne B Hodgkins3, Virginia Isabel Rich4, Scott R Saleska5, Jeff Chanton2 and Malak M Tfaily6, (1)University of Arizona, Environmental Science, Tucson, United States, (2)Florida State University, Tallahassee, FL, United States, (3)Florida State University, Dept. of Chemistry & Biochemistry, Tallahassee, FL, United States, (4)Ohio State University, Columbus, OH, United States, (5)University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, AZ, United States, (6)University of Arizona, Environmental Science, Tucson, AZ, United States
 
Radiocarbon Data from Permafrost Peatland Lakes Indicate Dissolved Methane is Dominantly Modern while Particulate Matter and Ebullition Methane Contain Older Carbon (499583)
Regina Gonzalez Moguel, McGill University, Earth and Planetary Sciences, Montreal, Canada, Peter Munroe Douglas, McGill University, Montreal, QC, Canada, Adrian Bass, University of Glasgow, Glasgow, United Kingdom, Martin Pilote, Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, QC, Canada and Mark Garnett, NERC Radiocarbon Facility, Glasgow, United Kingdom
 
Impact of long-term warming and wetting on carbon sequestration and nitrogen dynamics in High Arctic tundra soils (500424)
Malissa Ann Gueco Tayo1, Claudia I Czimczik2, Aubrey Fine3, Sean M Schaeffer3 and Jeffrey M Welker4, (1)University of California Irvine, Irvine, CA, United States, (2)Univ of California, Irvine, Irvine, CA, United States, (3)University of Tennessee, Knoxville, TN, United States, (4)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
 
Ramped PyrOx and Ultrahigh Resolution Mass Spectrometry Insights into the Age and Composition of Arctic River Dissolved Organic Matter (501849)
Jennifer Anastasia Rogers1, Valier Galy2, Jeff Chanton1 and Robert G Spencer1, (1)Florida State University, Tallahassee, FL, United States, (2)WHOI-MCG, Woods Hole, MA, United States
 
Permafrost Mapping with Electrical Resistivity Tomography in Two Wetland Systems North of the Tanana River, Interior Alaska (503754)
Christopher H Conaway, US Geological Survey, Water Mission Area, Earth System Processes Division, Menlo Park, CA, United States, Cordell D Johnson, USGS, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, Thomas D Lorenson, USGS PCMSC, Santa Cruz, CA, United States, Merritt R Turetsky, University of Guelph, Guelph, ON, Canada, Eugenie Susanne Euskirchen, University of Alaska Fairbanks, Fairbanks, AK, United States, Mark P Waldrop, US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States and Peter W Swarzenski, IAEA International Atomic Energy Agency, Monaco, Monaco
 
Microbial Carbon Degradation Processes in Thermokarst Lake Sediments from Bykovsky Peninsula, Northern Siberia (505735)
Maria Schindler, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Susanne Liebner, GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany, Christian Knoblauch, University of Hamburg, Hamburg, Germany, Jens Strauss, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Potsdam, Germany, Boris K Biskaborn, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany and Jens Kallmeyer, GFZ Potsdam, Geomicrobiology, Potsdam, Germany
 
Trajectory of Topsoil Nitrogen Transformations Along a Thermo‐Erosion Gully on the Tibetan Plateau (509159)
Yuanhe Yang1, Chao Mao2 and Dan Kou2, (1)Chinese Academy of Sciences, Beijing, China, (2)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China
 
The Effect of Permafrost Thaw on the Controls and Pathways of Decomposition that Regulate the Carbon Balance of Boreal Peatlands (509900)
Liam Heffernan1, Maria Cavaco2, Cristian Estop Aragones2,3, Maya P Bhatia2, Vincent EJ Jassey4 and David Olefeldt1, (1)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (2)University of Alberta, Edmonton, AB, Canada, (3)University of Münster, Münster, Germany, (4)University Paul Sabatier Toulouse III, Toulouse Cedex 09, France
 
Mineral Controls over Permafrost Carbon Stability and Decomposition (511685)
Shuqi Qin, IB Institute of Botany, Chinese Academy of Sciences, Beijing, China and Yuanhe Yang, Chinese Academy of Sciences, Beijing, China
 
Probing Organomineral Associations across a Chronosequence of Yedoma Permafrost Deposits in Fox, AK. (516820)
Rucha Wani1, Tyler D Sowers2,3, Elizabeth K Coward1 and Donald L Sparks2, (1)University of Delaware, Delaware Environmental Institute, Newark, DE, United States, (2)University of Delaware, Delaware Environmental Institute, Department of Plant and Soil Sciences, Newark, DE, United States, (3)US Environmental Protection Agency Research Triangle Park, Durham, NC, United States
 
Arctic Permafrost Soil Hydrology and Snow Cover Depth Critically Determine CO2 and CH4 emissions (517384)
Martin Heimann, Max Planck Institute for Biogeochemistry, Jena, Germany, Mathias Goeckede, MPI Biogeochemistry, Jena, Germany, Sergei A Zimov, Russian Academy Sciences, Sakha Yakutia, Russia and Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia
 
Significant C source driven by elevated water table but sink by increasing thaw depth in Alaska tundra under experimental warming: A data assimilation study (518610)
Yiqi Luo1, Xingjie Lu2, Edward Schuur3, Marguerite Mauritz4, Meghan Taylor4, Heidi Rodenhizer4, Christina Schaedel1, Christopher Ebert4, Anthony Garnello4, Elaine Pegoraro1, Shuang Ma1 and Xin Huang5, (1)Northern Arizona University, Flagstaff, AZ, United States, (2)School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China, (3)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (4)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (5)Northern Arizona University, Flagstaff, United States
 
Blowing snow impacts on permafrost temperature and greenhouse gas release in the terrestrial Arctic (527275)
Hotaek PARK, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Xiaoming Wang, The State Key Lab of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, China and Daqing Yang, Environment and Climate Change Canada, Victoria, BC, Canada
 
Carbon degradation and CO2 production within onshore and nearshore zones of eroding permafrost coasts (544760)
George Tanski1, Lisa Bröder1, Dirk Wagner2, Christian Knoblauch3, Hugues Lantuit4, Tommaso Tesi5, Jens Strauss4, Michael Fritz4, Torsten Sachs2 and Jorien Vonk1, (1)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (2)GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)University of Hamburg, Institute of Soil Science, Hamburg, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Potsdam, Germany, (5)Istituto di Scienze Marine, Bologna, Italy
 
Effects of Warming and Permafrost Thaw on the Three Important Greenhouse Gases – Carbon Dioxide, Methane, and Nitrous Oxide (Invited) (544819)
Carolina Voigt1, Maija E Marushchak2, Benjamin Abbott3, Christina Biasi4, Torben R Christensen5, Bo Elberling6, Marcin Jackowicz-Korczynski7, Richard E Lamprecht4, Pertti J. Martikainen4, Mikhail Mastepanov5, Oliver Sonnentag1 and Yuanhe Yang8, (1)University of Montreal, Department of Geography, Montreal, Canada, (2)University of Jyväskylä, Jyväskylä, Finland, (3)Brigham Young University, Provo, UT, United States, (4)University of Eastern Finland, Kuopio, Finland, (5)Aarhus University, Aarhus C, Denmark, (6)University of Copenhagen, Copenhagen, Denmark, (7)Lund University, Lund, Sweden, (8)Chinese Academy of Sciences, Beijing, China
 
The Net Aquatic and Terrestrial Carbon Balances are Linked by Weather Events in a Headwater Arctic Catchment (550942)
George W Kling1, Eugenie Susanne Euskirchen2, Marion Syndonia Bret-Harte2, Colin Edgar2 and Svetlana L. Stuefer2, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States
 
Influence of permafrost and site history on losses of permafrost carbon after thaw (555540)
Kristen Manies, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States, Miriam Jones, U.S. Geological Survey., Reston, VA, United States, Mark P Waldrop, US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States and Kristen Hoefke, US Geological Survey, Reston, VA, United States
 
Heat transfer from precipitation hastens permafrost degradation and decreases carbon-climate feedbacks (564153)
Zelalem Amdie Mekonnen1, William J Riley1 and Robert F Grant2, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada
 
Soil CO2 Profile Measurements Reveal an Increase in the Proportion of Old Soil Carbon over a Thirteen Year Study at a Permafrost Site in Interior Alaska (569436)
Christopher Ebert1, Elaine Pegoraro2, Marguerite Mauritz1, Susan Natali3, Caitlin Hicks Pries4 and Edward Schuur5, (1)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (2)Northern Arizona University, Flagstaff, AZ, United States, (3)Woods Hole Science Center, Falmouth, MA, United States, (4)Dartmouth College Life Sciences Center, room 349 78, Hanover, NH, United States, (5)Univ Florida, Gainesville, FL, United States
 
Assessing the Degradation State of Soil Organic Matter in the Permafrost Region (574235)
Julie D Jastrow1, Roser Matamala1, Scott M Hofmann1, Timothy W Vugteveen1, Jeremy S Lederhouse1, Gary J Michaelson2 and Chien-Lu Ping2, (1)Argonne National Laboratory, Argonne, IL, United States, (2)University of Alaska Fairbanks, Palmer, AK, United States
 
Listen for the Pop: The capture and quantification of ebullitive methane from thaw ponds using a high frequency acoustic bubble trap system (582030)
Sophia A Burke1,2, Apryl Lee Perry1,2, Alexandra Padilla3, Michael W Palace1,2, Tom Weber3, Andreas Persson4, Patrick M Crill5 and Ruth K Varner1,2, (1)University of New Hampshire, Department of Earth Sciences, Durham, NH, United States, (2)University of New Hampshire, Institute for the Study of Earth, Oceans, and Space (EOS), Durham, NH, United States, (3)University of New Hampshire, Center for Coastal & Ocean Mapping, School of Marine Science and Ocean Engineering/Joint Hydrographic Center, University of New Hampshire, Durham, NH, United States, (4)Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden, (5)Stockholm University, Department of Geological Sciences, Stockholm, Sweden
 
The Vulnerability of Permafrost Carbon to Climate Change: Key Findings from a Decade of Synthesis (584425)
Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States and Christina Schaedel, Northern Arizona University, Flagstaff, AZ, United States
 
CONTRIBUTIONS OF OPTICAL REMOTE SENSING TO PERMAFROST MAPPING IN DONNELLY TRAINING AREA, ALASKA (594839)
Kiran Thapa, Murphysboro, Illinois, United States
 
Disturbed High Arctic Permafrost Watersheds: A Decade of Impact on Fluvial Organic Carbon Fluxes (601800)
Casey Robert Beel, Wilfrid Laurier University, Waterloo, ON, Canada; Queen's University, Kingston, ON, Canada, Scott F Lamoureux, Queen's University, Geography and Planning, Kingston, Canada, John F Orwin, Queen's University, Geography and Planning, Kingston, ON, Canada and Melissa J Lafreniere, Queens University, Geography and Planning, Kingston, ON, Canada
 
Contrasting Carbon and Nitrogen Stocks and Ice Contents along Two Arctic Hillslope Toposequences (601916)
Roser Matamala, Argonne National Laboratory, Argonne, IL, United States, Nicolas Jelinski, University of Minnesota-Twin Cities, Minneapolis, MN, United States, Chien-Lu Ping, Univ Alaska Fairbanks, Palmer, AK, United States and Julie D Jastrow, Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States
 
Estimating Soil Organic Carbon in the Active Layer of the Arctic Foothills Using Spaceborne InSAR Surface Deformation Data (604160)
Yue WU1, Jingyi Chen2, Michael O'Connor3, Stephen Bruce Ferencz3, M. Bayani Cardenas4 and George W Kling5, (1)University of Texas at Austin, Department of Aerospace Engineering & Engineering Mechanics, Austin, TX, United States, (2)University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, TX, United States, (3)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, (4)University of Texas at Austin, Geological Sciences, Austin, TX, United States, (5)University of Michigan, Ecology and Evolutionary Biology, Ann Arbor, MI, United States
 
Bacterial community composition changes independently of soil edaphic parameters with anthropogenic permafrost thaw (607792)
Brian D Lanoil1, Patrick Neuberger2, Alireza Saidi-Mehrabad2 and Duane G Froese3, (1)University of Alberta, Biological Sciences, Edmonton, AB, Canada, (2)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (3)University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada
 
Ancient C emissions from Arctic tundra: soil carbon isofluxes (14CO2) in response to long-term changes in winter snow depth (618911)
Robert G Jespersen1, Shawn Pedron2, Claudia I Czimczik3, Jeffrey M Welker4, John C Ferguson5 and Xiaomei Xu2, (1)University of Alaska Anchorage, Anchorage, AK, United States, (2)University of California Irvine, Irvine, CA, United States, (3)Univ of California, Irvine, Irvine, CA, United States, (4)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States, (5)University of Alaska Anchorage, Anchorage, United States
 
Accessibility of permafrost carbon in a changing Arctic: Assessing the influence of experimentally- increased snowpack height on microbial carbon sources (621759)
Shawn Pedron1, Jeffrey M Welker2, Robert G Jespersen3, Xiaomei Xu4, Sandra R Holden1, Anna Natasha5 and Claudia I Czimczik6, (1)University of California Irvine, Irvine, CA, United States, (2)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States, (3)University of Alaska Anchorage, Anchorage, AK, United States, (4)Univ California Irvine, Irvine, CA, United States, (5)University of California Irvine, Irvine, United States, (6)Univ of California, Irvine, Irvine, CA, United States
 
Closing the winter gap – year-round measurements of soil respiration sources in Arctic tussock tundra (622448)
Claudia I Czimczik, University of California Irvine, Earth System Science, Irvine, CA, United States, Shawn Pedron, University of California Irvine, Irvine, CA, United States, Xiaomei Xu, University of California, Irvine, Department of Earth System Science, Irvine, CA, United States, Jennifer Clare Walker, University of California, Irvine, Irvine, CA, United States, Eric S Klein, University of Alaska Anchorage, Geological Sciences, Anchorage, AK, United States, Eugenie Susanne Euskirchen, University of Alaska Fairbanks, Fairbanks, AK, United States and Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
 
Reconciling Historical and Contemporary Trends in Terrestrial Carbon Exchange of the High-latitude Permafrost-zone (626113)
Marguerite Mauritz1, Gerardo Celis2, Roisin Commane3, Eugenie Susanne Euskirchen4, Mathias Goeckede5, Elyn Humphreys6, Min Jung Kwon7, Christina Minions8, Susan Natali9, Steven F Oberbauer10, Frans-Jan W Parmentier11, Brendan M Rogers12, Mark Schildhauer13, Oliver Sonnentag14, Margaret S Torn15, Masahito Ueyama16, Anna-Maria Virkkala17, Jennifer Watts8 and Edward Schuur18, (1)University of Texas at El Paso, El Paso, TX, United States, (2)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (3)Columbia University of New York City, Palisades, CA, United States, (4)University of Alaska Fairbanks, Fairbanks, AK, United States, (5)MPI Biogeochemistry, Jena, Germany, (6)Carleton University, Ottawa, ON, Canada, (7)Korea Polar Research Institute, Incheon, South Korea, (8)Woods Hole Research Center, Falmouth, United States, (9)Woods Hole Science Center, Falmouth, MA, United States, (10)Florida Intl Univ, Miami, FL, United States, (11)University of Oslo, Department of Geosciences, Oslo, Norway, (12)Woods Hole Research Center, Falmouth, MA, United States, (13)National Center for Ecological Analysis and Synthesis, Santa Barbara, United States, (14)Université de Montréal, Département de Géographie, Montréal, QC, Canada, (15)Berkeley Lab/UC Berkeley, Berkeley, CA, United States, (16)Osaka Prefecture University, Sakai, Japan, (17)University of Helsinki, Helsinki, Finland, (18)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
 
Fraction modern: molecular carbon dynamics across a Yedoma permafrost thaw chronosequence (627211)
Elizabeth K Coward1, Tyler D Sowers2,3, Rucha Wani1 and Donald L Sparks2, (1)University of Delaware, Delaware Environmental Institute, Newark, DE, United States, (2)University of Delaware, Delaware Environmental Institute, Department of Plant and Soil Sciences, Newark, DE, United States, (3)US Environmental Protection Agency Research Triangle Park, Durham, NC, United States
See more of: Biogeosciences
<< Previous Session Proposal | Next Session Proposal >>