B31G:
Vulnerability of Permafrost Carbon to Climate Change I Posters

Session ID#: 4736

Wednesday, 17 December 2014: 8:00 AM-12:20 PM
Not an Option (Moscone West)
Chairs:  Christina Schaedel, Woodwell Climate Research Center, Falmouth, United States and Anthony David McGuire, Univ Alaska Fairbanks, Fairbanks, AK, United States
Primary Convener:  Christina Schaedel, Woodwell Climate Research Center, Falmouth, United States
Co-conveners:  Anthony David McGuire, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and David Olefeldt, University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada
OSPA Liaison:  David Olefeldt, University of Alberta, Edmonton, AB, Canada
Co-Sponsor(s):
  • C - Cryosphere
  • GC - Global Environmental Change
Index Terms:
Virtual Option?: No
Swirl Theme: Global Soils

Abstracts Submitted to this Session:

 
Permafrost carbon-climate feedback in high-altitude ecosystems: evidence from the Tibetan Plateau (2753)
Yuanhe Yang1, Jinzhi Ding2, Tianfeng Han2, Yunfeng Peng3, Fei Li2, Leiyi Chen2 and Yongliang Chen2, (1)Chinese Academy of Sciences, Beijing, China, (2)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (3)Institute of Botany, Chinese Academy of Sciences, Beijing, China
 
Estimation of Soil Organic Carbon Stock in the Midtre Lovénbreen Moraine, Svalbard (8545)
Ji Young Jung1, Yoo Kyung Lee2, Hyeyoung Kwon3, Se-eun Kim3, Dominique Laffly4, Yannick Le NIR5, Lennart Nilsen6 and Myrtille Moreau7, (1)Korea Polar Research Institute, Division of Life Sciences, Incheon, South Korea, (2)Korea Polar Research Institute, Incheon, South Korea, (3)KOPRI Korea Polar Research Institute, Incheon, Korea, Republic of (South), (4)Université de Toulouse, Toulouse, France, (5)Ecole Internationale des Sciences de l’Information, Toulouse, France, (6)University of Tromsø, Arctic and Marine Biology, Tromsø, Norway, (7)Géorex, Toulouse, France
 
Decomposition of Permafrost Carbon with Increasing Incubation Temperature on the Qinghai-Xizang (Tibetan) Plateau (5664)
Cuicui Mu1 and Tingjun Zhang1,2, (1)LZU Lanzhou University, Lanzhou, China, (2)University of Colorado, Boulder, CO, United States
 
Total Storage and Landscape Partitioning of Soil Organic Carbon and Phytomass Carbon in Siberia (21199)
Matthias Benjamin Siewert1, Jessica Hanisch2,3, Niels Weiss4, Peter Kuhry5 and Gustaf Hugelius5, (1)Umeå University, Umeå, Sweden, (2)University of Montreal, Montreal, QC, Canada, (3)Université de Montréal, Département de géographie, Montréal, QC, Canada, (4)Stockholm University, Stockholm, Sweden, (5)Stockholm University, Department of Physical Geography, Stockholm, Sweden
 
Peat carbon stocks and potential microbial lability of boreal peatlands with varying permafrost histories (6841)
David Olefeldt, University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, Nicolas Pelletier, University of Montreal, Montreal, QC, Canada, Julie Talbot, University of Montreal, Department of Geography, Montreal, QC, Canada, Christian Blodau, University of Münster, Münster, Germany and Merritt R Turetsky, Renewable and Sustainable Energy Institute, Department of Ecology and Evolutionary Biology, Boulder, United States
 
Improved Estimates Show Large Circumpolar Stocks of Permafrost Carbon While Quantifying Substantial Uncertainty Ranges and Identifying Remaining Data Gaps (15413)
Gustaf Hugelius1, Jens Strauss2, Sebastian Zubrzycki3, Jennifer W W Harden4, Edward Schuur5, Chien-Lu Ping6, Lutz Schirrmeister7, Guido Grosse2, Gary J Michaelson8, Charles D Koven9, Dr. Jonathan A O'Donnell10, Bo Elberling11, Umakant Mishra12, Philip Camill13, Zicheng Yu14, Juri Palmtag15 and Peter Kuhry1, (1)Stockholm University, Department of Physical Geography, Stockholm, Sweden, (2)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany, (3)University of Hamburg, Hamburg, Germany, (4)USGS California Water Science Center Menlo Park, Menlo Park, CA, United States, (5)Univ Florida, Gainesville, United States, (6)University of Alaska Fairbanks, Fairbanks, AK, United States, (7)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research Section, Potsdam, Germany, (8)University of Alaska Fairbanks, Palmer, AK, United States, (9)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (10)National Park Service Fairbanks, Fairbanks, United States, (11)University of Copenhagen, Copenhagen, Denmark, (12)Argonne National Laboratory, Environmental Science Division, Argonne, United States, (13)Bowdoin College, Earth and Oceanographic Science Dept. and Environmental Studies Program, Brunswick, United States, (14)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States, (15)Stockholm University, Stockholm, Sweden
 
Improved Modeling of Soil Biogeochemistry in Permafrost (16876)
Kevin M Schaefer, National Snow and Ice Data Center, Cooperative Institute for Research in the Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado, U.S.A, Boulder, United States and Elchin E Jafarov, Woodwell Climate Research Center, Falmouth, United States
 
Effects of Conversion from Boreal Forest to Arctic Steppe on Soil Communities and Ecosystem Carbon Pools (20811)
Peter Daniel Han, SUNY College of Environmental Science and Forestry, Environmental and Forest Biology, Syracuse, NY, United States, Susan Natali, Woodwell Climate Research Center, Falmouth, United States, John D Schade, Organization Not Listed, Washington, DC, United States, Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia and Sergei A Zimov, Russian Academy of Sciences, Moscow, Russia
 
Soil temperature and water content drive microbial carbon fixation in grassland of permafrost area on the Tibetan plateau (22050)
Weidong Kong, Guangxia Guo and Jinbo Liu, ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
 
Impacts of Thermokarst Formation and Wildfire on Boreal Forest Carbon Cycling (8033)
James Paul Fisher1, Cristian Estop-Aragones2, Aaron Thierry3, Iain P Hartley4, Julian Murton5, Dan Charman2, Mathew Williams3 and Gareth K Phoenix1, (1)University of Sheffield, Sheffield, S10, United Kingdom, (2)University of Exeter, Geography, Exeter, EX4, United Kingdom, (3)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (4)University of Exeter, Geography, Exeter, United Kingdom, (5)University of Sussex, Brighton, United Kingdom
 
The Impact of Climate Change on Microbial Communities and Carbon Cycling in High Arctic Permafrost Soil from Spitsbergen, Northern Norway (25137)
Kristine Claire de Leon, University of Arizona, Tucson, AZ, United States, David Schwery, University of Fribourg, Geography, Fribourg, Switzerland, Kenji Yoshikawa, Univ Alaska Fairbanks, Fairbanks, AK, United States, Hanne H. Christiansen, University Centre in Svalbard, Arctic Geology Department, Longyearbyen, Norway, David Pearce, Northumbria University, Microbiology, Newcastle-Upon-Tyne, United Kingdom and The UNIS International Bachelor Permafrost Summer Field School
 
Sensitivity of Arctic Permafrost Carbon in the Mackenzie River Basin: A substrate addition and incubation experiment (26018)
Alexandra Hedgpeth1, Dave Beilman1 and Susan E Crow2, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)University of Hawaiʻi at Mānoa, Natural Resources and Environmental Management, Honolulu, United States
 
Grene-Terrestrial Model Intercomparison Project in Arctic (GTMIP) (8256)
Kazuyuki Saito1, Shin Miyazaki1,2, Junko Mori1,2, Takeshi Ise3, Takeshi Yamazaki4, Hazuki Arakida5 and GRENE-TEA Modeling group, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)NIPR National Institute of Polar Research, Tokyo, Japan, (3)Kyoto University, Kyoto, Japan, (4)Tohoku University, Sendai, Japan, (5)RIKEN Advanced Institute for Computational Sciences, Kobe, Japan
 
Influence of Plant Communities on Active Layer Depth in Boreal Forest (8624)
Gareth K Phoenix1, James Paul Fisher1, Cristian Estop-Aragones2, Aaron Thierry3, Iain P Hartley4, Julian Murton5, Dan Charman6 and Mathew Williams3, (1)University of Sheffield, Sheffield, S10, United Kingdom, (2)University of Exeter, Geography, Exeter, EX4, United Kingdom, (3)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (4)University of Exeter, Department of Geography, Exeter, United Kingdom, (5)University of Sussex, Brighton, United Kingdom, (6)University of Exeter, Exeter, EX4, United Kingdom
 
Patterns in DOC Concentration and Composition in Tundra Watersheds in the Kolyma River Basin (9699)
Megan Irene Behnke, University of Alaska Southeast, Alaska Climate Adaptation Science Center, Juneau, United States, John D Schade, St. Olaf College, Northfield, MN, United States, Greg Fiske, Woodwell Climate Research Center, Falmouth, MA, United States, Kyle A Whittinghill, Saint Olaf College, Biology and Environmental Studies, Northfield, MN, United States and Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia
 
Effects of Permafrost Thaw on Net Ecosystem Carbon Balance in a Subarctic Peatland (10544)
Zheng Wang, Nigel T Roulet and Tim R Moore, McGill University, Department of Geography, and Global Environmental and Climate Change Centre, Montreal, QC, Canada
 
Topographic Variation and Methane Production in Siberian Arctic Tundra (10852)
McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States, Jessica Eason, Brown University, Providence, RI, United States, Samuel Dunn, Colorado State University, Fort Collins, CO, United States, Seth Spawn, The Nature Conservancy, Minneapolis, United States and John D Schade, St. Olaf College, Northfield, MN, United States
 
Mapping Microbial Carbon Substrate Utilization Across Permafrost Thaw (10936)
Darya Anderson, University of Arizona, Tucson, AZ, United States, Virginia Isabel Rich, University of Arizona, Tucson, United States, Dr. Suzanne B Hodgkins, PhD, Florida State University, Dept. of Chemistry & Biochemistry, Tallahassee, FL, United States, Malak Tfaily, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States and Jeff Chanton, Florida State University, Department of Earth, Ocean & Atmospheric Science, Tallahassee, United States
 
The Effect of Sedimentation Conditions of Frozen Deposits at the Kolyma Lowland on the Distribution of Methane and Microorganisms Activity (11031)
Viktoriya Oshurkova1, Alexander L Kholodov2, Valentin Spektor3, Viktoria Sherbakova1 and Elizaveta Rivkina4, (1)Institute of Biochemistry and Physiology of Microorganisms, Pushchino, Russia, (2)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, (3)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia, (4)Institute of Physiochemical and Biological Problems in Soil Science, Pushchino, Russia
 
Changes in Dissolved Carbon and Nitrogen Concentrations Along a Hill Slope Flow Path in Siberian Arctic Tundra (11318)
Julian Theberge, Western Washington University, Bellingham, WA, United States, John D Schade, St. Olaf College, Northfield, MN, United States, Greg Fiske, Woodwell Climate Research Center, Falmouth, MA, United States, Michael M Loranty, Colgate University, Geography, Hamilton, NY, United States and Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia
 
Shrub Expansion in Arctic Alaska Alters the Sources (14C) and Magnitudes of Ecosystem Respiration in the Continuous Permafrost Zone (12927)
Sandra R Holden, University of California Irvine, Irvine, CA, United States, Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, United States and Claudia I Czimczik, University of California Irvine, Earth System Science, Irvine, CA, United States
 
Impact of downslope soil transport on carbon storage and fate in permafrost dominated landscapes (13300)
Eitan Shelef1, Joel C Rowland2, Cathy Jean Wilson1, Garrett Altmann1 and George E Hilley3, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, (3)Stanford University, Earth and Planetary Sciences, Stanford, United States
 
Impact of warming and drying on microbial activity in subarctic tundra soils: inferences from patterns in extracellular enzyme activity (14486)
John D Schade, St. Olaf College, Northfield, MN, United States, Susan Natali, Woodwell Climate Research Center, Falmouth, United States, Seth Spawn, Woods Hole Science Center Falmouth, Falmouth, MA, United States, Seeta Sistla, California Polytechnic State University San Luis Obispo, Natural Resources Management and Environmental Science, San Luis Obispo, CA, United States and Edward Schuur, Univ Florida, Gainesville, United States
 
Estimating and mapping of soil carbon stock using satellite data (14875)
Chiharu Hongo1, Eisaku Tamura1, Kensuke Aijima1 and Katsuhisa Niwa2, (1)Center for Environmental Remote Sensing, Chiba University, Chiba, Japan, (2)Zukosha Co., Ltd., Obihiro, Japan
 
Exploring Viral Mediated Carbon Cycling in Thawing Permafrost Microbial Communities (14882)
Dr. Gareth George Trubl, PhD1, Natalie Solonenko2, Mario Moreno3, Matthew B Sullivan3 and Virginia Isabel Rich4, (1)Lawrence Livermore National Laboratory, Livermore, United States, (2)Ohio State University Main Campus, Columbus, OH, United States, (3)University of Arizona, Tucson, AZ, United States, (4)University of Arizona, Tucson, United States
 
Carbon Fluxes in a sub-arctic tundra undergoing permafrost degradation (15916)
Rosvel G Bracho, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States, Elizabeth Webb, University of Florida, Ft Walton Beach, United States, Marguerite Mauritz, University of Florida, Ft Walton Beach, FL, United States and Edward Schuur, Northern Arizona University, Department of Biological Sciences, Flagstaff, AZ, United States
 
The effect of organic soil layer on simulated permafrost dynamics (16754)
Elchin E Jafarov, Woodwell Climate Research Center, Falmouth, United States and Kevin M Schaefer, National Snow and Ice Data Center, Cooperative Institute for Research in the Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado, U.S.A, Boulder, United States
 
Effects of Fire on Ecosystem Carbon Exchange in Siberian Larch Forest (16949)
Susan Natali, Woodwell Climate Research Center, Falmouth, United States, Heather Dawn Alexander, Auburn University, Auburn, United States, Sergei P Davydov, Russian Academy of Sciences, Moscow, Russia, Michael M Loranty, Colgate University, Geography, Hamilton, NY, United States, Michelle C Mack, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States and Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia
 
An Assessment of Thermokarst Driven Changes in Land Cover of the Tanana Flats Wetland Complex of Alaska from 2009 to 2100 in response to Climate Warming (18050)
Yujin Zhang1, Helene Genet2, Mark J Lara3, Anthony David McGuire2, Jennifer Roach1, Vijay Patil4, Vladimir E Romanovsky5, Bob Bolton6 and Ruth Rutter7, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (3)University of Illinois at Urbana Champaign, Plant Biology, Urbana, United States, (4)USGS Alaska Science Center, Anchorage, AK, United States, (5)Geophysical Institute, Fairbanks, AK, United States, (6)University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, United States, (7)University of Alaska Fairbanks, Fairbanks, United States
 
Permafrost Thaw in a Subarctic Peatland – Which Factors are Most Important? (18465)
Britta Sannel, Gustaf Hugelius and Peter Kuhry, Stockholm University, Department of Physical Geography, Stockholm, Sweden
 
Effects of Landscape Position on Carbon Cycling in Siberian Arctic Tundra (18767)
Salvatore Rex Curasi, Colgate University, Department of Geography, Hamilton, NY, United States, Luis R Weber, University of Puerto Rico Rio Piedras Campus, Department of Environmental Sciences, Cidra, PR, United States and Michael M Loranty, Colgate University, Geography, Hamilton, NY, United States
 
Post-thaw carbon stock variation in a permafrost peatland of the boreal zone. (19457)
Nicolas Pelletier, University of Montreal, Montreal, QC, Canada, David Olefeldt, University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, Merritt R Turetsky, Renewable and Sustainable Energy Institute, Department of Ecology and Evolutionary Biology, Boulder, United States, Christian Blodau, University of Münster, Münster, Germany and Julie Talbot, University of Montreal, Department of Geography, Montreal, QC, Canada
 
Consequences of artic ground squirrels on soil carbon loss from Siberian tundra (20090)
Nigel Allen Golden, University of Wisconsin Stevens Point, Stevens Point, WI, United States, Susan Natali, Woods Hole Science Center Woods Hole, Woods Hole, MA, United States, Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia and Polaris Research Team
 
Shift of thermokarst lakes from methane source to climate-cooling carbon sink (20703)
Katey M Walter Anthony1, Sergei A Zimov2, Guido Grosse3, Miriam Jones4, Peter Anthony5, Terry Chapin5, Jacques C Finlay6, Michelle C Mack7, Sergei P Davydov8, Peter Frenzel9 and Steve E Frolking10, (1)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (2)Northeast Science Station, Cherskii, Russia, (3)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany, (4)U.S. Geological Survey., Reston, United States, (5)University of Alaska Fairbanks, Fairbanks, AK, United States, (6)University of Minnesota, Ecology, Evolution, and Behavior, Saint Paul, United States, (7)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (8)Russian Academy of Sciences, Moscow, Russia, (9)Max Planck Institute for Terrestrial Microbiology, Marburg, Germany, (10)University of New Hampshire, Durham, United States
 
Can Plant Community Turnover Mitigate Permafrost Thaw Feedbacks to the Climate System? (20888)
Moira Hough, University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, United States, Anthony Garnello, University of Arizona, Ecology and Evolutionary Biology, Tucson, AZ, United States, Daniel Finnell, University of New Hampshire Main Campus, Durham, NH, United States, Michael W Palace, University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, United States, Virginia Isabel Rich, University of Arizona, Tucson, United States and Scott R Saleska, University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, AZ, United States
 
ECOSYSTEM CARBON DYNAMICS IN RESPONSE TO FIVE WINTERS OF EXPERIMENTAL SOIL WARMING AND PERMAFROST DEGRADATION (21064)
Marguerite Mauritz, University of Florida, Ft Walton Beach, FL, United States, Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, Rosvel G Bracho, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States, Gerardo Celis, University of Florida, Agronomy, Gainesville, United States, Susan Natali, Woodwell Climate Research Center, Falmouth, United States, Jack A Hutchings, University of Florida, Gainesville, FL, United States, Verity G Salmon, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States and Elizabeth Webb, University of Florida, Ft Walton Beach, United States
 
The Effects of Permafrost Thaw on Organic Matter Quality and Availability Along a Hill Slope in Northeastern Siberia (21947)
Craig T Connolly, University of Texas at Austin, Austin, TX, United States, Seth Spawn, Woods Hole Science Center Woods Hole, Woods Hole, MA, United States, Sarah Ludwig, University of Alaska Fairbanks, Biology and Wildlife, Fairbanks, AK, United States, John D Schade, Organization Not Listed, Washington, DC, United States and Susan Natali, Woodwell Climate Research Center, Falmouth, United States
 
Methane Emissions are Predominantly Derived from Contemporary Carbon from a Thawing Permafrost Peatland in Canada (22656)
Mark David Arthur Cooper1, Cristian Estop-Aragones2, James Paul Fisher3, Mark Garnett4, Dan Charman1, Julian Murton5, Gareth K Phoenix3, Rachael Treharne6, Lorna Street7, Philip A Wookey8 and Iain P Hartley9, (1)University of Exeter, Exeter, EX4, United Kingdom, (2)University of Exeter, Geography, Exeter, EX4, United Kingdom, (3)University of Sheffield, Sheffield, S10, United Kingdom, (4)NERC Radiocarbon Facility, Glasgow, United Kingdom, (5)University of Sussex, Brighton, United Kingdom, (6)Woodwell Climate Research Center, Falmouth, United States, (7)Organization Not Listed, School of GeoSciences, Edinburgh, UNITED KINGDOM, (8)Heriot-Watt University, Biological Sciences, Edinburgh, United Kingdom, (9)University of Exeter, Department of Geography, Exeter, United Kingdom
 
Above and below ground carbon stocks in northeast Siberia tundra ecosystems: a comparison between disturbed and undisturbed areas (24718)
Luis R Weber1, Homero Pena III2, Salvatore Rex Curasi3, Erika Ramos2, Michael M Loranty4, Heather Dawn Alexander5 and Susan Natali6, (1)University of Puerto Rico Rio Piedras Campus, Department of Environmental Sciences, Cidra, PR, United States, (2)University of Texas at Brownsville, Brownsville, TX, United States, (3)Colgate University, Department of Geography, Hamilton, NY, United States, (4)Colgate University, Geography, Hamilton, NY, United States, (5)Auburn University, Auburn, United States, (6)Woodwell Climate Research Center, Falmouth, United States
 
Effects of Disturbances on Vegetation Composition and Permafrost Thaw in Boreal Forests and Tundra Ecosystems of the Siberian Arctic (24848)
Erika Ramos, University of Texas at Brownsville, Brownsville, TX, United States, Heather Dawn Alexander, Auburn University, Auburn, United States and Susan Natali, Woodwell Climate Research Center, Falmouth, United States
 
Changing environmental correlates of peatland C fluxes in a thawing landscape: do transitional thaw stages matter? (26371)
Avni Malhotra, Pacific Northwest National Laboratory, Richland, WA, United States and Nigel T Roulet, McGill University, Department of Geography, and Global Environmental and Climate Change Centre, Montreal, QC, Canada
 
Effects of Temperature and Substrate Availability on Methanotrophy in Arctic Permafrost Landscapes (26415)
Taniya Roy Chowdhury, Oak Ridge National Lab, Oak Ridge, TN, United States, David E Graham, Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States and Stan D Wullschleger, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States
 
Characterizing Soil Organic Matter Degradation Levels in Permafrost-affected Soils using Infrared Spectroscopy (26674)
Roser Matamala1, Julie D Jastrow1, Francisco Calderon2, Chao Liang3, R. Michael Miller3, Chien-Lu Ping4, Gary J Michaelson5 and Scott M Hofmann3, (1)Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, (2)United States Department of Agriculture, USDA-ARS Central Great Plains Research Station, Akron, CO, United States, (3)Argonne National Laboratory, Argonne, IL, United States, (4)University of Alaska Fairbanks, Fairbanks, AK, United States, (5)University of Alaska Fairbanks, Palmer, AK, United States
 
Carbon Mineralization and Nitrogen Transformation During a Long Term Permafrost Incubation (27296)
Verity G Salmon, Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, Michelle C Mack, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
 
Biogeochemical Controls on Microbial CO2 and CH4 Production in Polygonal Soils From the Barrow Environmental Observatory (29598)
David E Graham1, Taniya Roy Chowdhury2, Elizabeth Herndon3, Baohua Gu4, Liyuan Liang5 and Stan D Wullschleger4, (1)Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States, (2)Oak Ridge National Lab, Oak Ridge, TN, United States, (3)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, United States, (4)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (5)Oak Ridge National Laboratory, Oak Ridge, TN, United States
 
Interpreting Carbon Fluxes from a Spatially Heterogeneous Peatland with Thawing Permafrost: Scaling from Plant Community Scale to Ecosystem Scale (8115)
Silvie R Harder1, Nigel T Roulet2, Ian B Strachan3, Patrick M Crill4, Andreas Persson5, Luc Pelletier1 and Caitlin Watt6, (1)McGill University, Montreal, QC, Canada, (2)McGill University, Department of Geography, Montreal, QC, Canada, (3)Queen's University, Department of Geography and Planning, Kingston, ON, Canada, (4)Stockholm University, Stockholm, Sweden, (5)Lund University, Lund, Sweden, (6)McGill University, Montreal, Canada
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