B31G:
Vulnerability of Permafrost Carbon to Climate Change I Posters

Wednesday, 17 December 2014: 8:00 AM-12:20 PM
Chairs:  Christina Schaedel, University of Florida, Gainesville, FL, United States and Anthony David McGuire, Univ Alaska Fairbanks, Fairbanks, AK, United States
Primary Conveners:  Christina Schaedel, University of Florida, Gainesville, FL, 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, Edmonton, AB, Canada
OSPA Liaisons:  David Olefeldt, University of Guelph, Guelph, ON, Canada

Abstracts Submitted to this Session:

 
Permafrost carbon-climate feedback in high-altitude ecosystems: evidence from the Tibetan Plateau
Yuanhe Yang, Jinzhi Ding, Tianfeng Han, Yunfeng Peng, Fei Li, Leiyi Chen and Yongliang Chen, IB Institute of Botany, Chinese Academy of Sciences, Beijing, China
 
Estimation of Soil Organic Carbon Stock in the Midtre Lovénbreen Moraine, Svalbard
JI Young Jung1, Yoo Kyung Lee1, Hyeyoung Kwon1, Se-eun Kim1, Dominique Laffly2, Yannick Le NIR3, Lennart Nilsen4 and Myrtille Moreau5, (1)KOPRI Korea Polar Research Institute, Incheon, South Korea, (2)Université de Toulouse 2, Toulouse, France, (3)Ecole Internationale des Sciences de l’Information, Toulouse, France, (4)University of Tromsø, Tromsø, Norway, (5)Géorex, Toulouse, France
 
Decomposition of Permafrost Carbon with Increasing Incubation Temperature on the Qinghai-Xizang (Tibetan) Plateau
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
Matthias Benjamin Siewert1, Jessica Hanisch1,2, Niels Weiss1, Peter Kuhry1 and Gustaf Hugelius1, (1)Stockholm University, Stockholm, Sweden, (2)University of Montreal, Montreal, QC, Canada
 
Peat carbon stocks and potential microbial lability of boreal peatlands with varying permafrost histories
David Olefeldt1, Nicolas Pelletier2, Julie Talbot2, Christian Blodau3 and Merritt R Turetsky4, (1)University of Alberta, Edmonton, AB, Canada, (2)University of Montreal, Montreal, QC, Canada, (3)University of Münster, Münster, Germany, (4)University of Guelph, Guelph, ON, Canada
 
Improved Estimates Show Large Circumpolar Stocks of Permafrost Carbon While Quantifying Substantial Uncertainty Ranges and Identifying Remaining Data Gaps
Gustaf Hugelius1, Jens Strauss2, Sebastian Zubrzycki3, Jennifer W Harden4, Edward A G Schuur5, Chien-Lu Ping6, Lutz Schirrmeister2, Guido Grosse2, Gary J Michaelson6, Charles D Koven7, Jonathan A ODonnell8, Bo Elberling9, Umakant Mishra10, Philip Camill11, Zicheng Yu12, Juri Palmtag1 and Peter Kuhry1, (1)Stockholm University, Stockholm, Sweden, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, 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, FL, United States, (6)University of Alaska Fairbanks, Anchorage, AK, United States, (7)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (8)National Park Service Fairbanks, Fairbanks, AK, United States, (9)University of Copenhagen, Copenhagen, Denmark, (10)Argonne National Laboratory, Argonne, IL, United States, (11)Bowdoin College, Brunswick, ME, United States, (12)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
 
Improved Modeling of Soil Biogeochemistry in Permafrost
Kevin M Schaefer, University of Colorado, National Snow and Ice Data Center, Boulder, CO, United States and Elchin E Jafarov, National Snow and Ice Data Center, Boulder, CO, United States
 
Effects of Conversion from Boreal Forest to Arctic Steppe on Soil Communities and Ecosystem Carbon Pools
Peter Daniel Han, SUNY College of Environmental Science and Forestry, Environmental and Forest Biology, Syracuse, NY, United States, Susan Natali, Woods Hole Science Center Falmouth, Falmouth, MA, United States, John D Schade, Organization Not Listed, Washington, DC, United States, Nikita Zimov, Northeast Scientific Station, Cherskiy, Russia and Sergei A Zimov, Russian Academy of Sciences, Moscow, Russia
 
Constraining Soil C Loss upon Thaw: Comparing Soils with and without Permafrost
Jennifer W Harden1, Chien-Lu Ping2, Jonathan A. O'Donnell3, Charles D Koven4, Gary J Michaelson2, Helene Genet5 and Xiaomei Xu6, (1)USGS California Water Science Center Menlo Park, Menlo Park, CA, United States, (2)University of Alaska Fairbanks, Anchorage, AK, United States, (3)National Park Service Anchorage, Anchorage, AK, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (5)Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, United States, (6)University of California Irvine, Irvine, CA, United States
 
Soil temperature and water content drive microbial carbon fixation in grassland of permafrost area on the Tibetan plateau
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
James Paul Fisher1, Cristian Estop-Aragones2, Aaron Thierry3, Iain P Hartley2, Julian Murton4, Dan Charman5, Mathew Williams3 and Gareth K Phoenix1, (1)University of Sheffield, Sheffield, United Kingdom, (2)University of Exeter, Geography, Exeter, United Kingdom, (3)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (4)University of Sussex, Brighton, United Kingdom, (5)University of Exeter, Geography, Exeter, EX4, United Kingdom
 
The Impact of Climate Change on Microbial Communities and Carbon Cycling in High Arctic Permafrost Soil from Spitsbergen, Northern Norway
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, Longyearbyen, Norway and David Pearce, Northumbria University, Microbiology, Newcastle-Upon-Tyne, United Kingdom
 
Sensitivity of Arctic Permafrost Carbon in the Mackenzie River Basin: A substrate addition and incubation experiment
Alex Hedgpeth1, Dave Beilman1 and Susan E Crow2, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)University of Hawaii Manoa, Honolulu, HI, United States
 
Grene-Terrestrial Model Intercomparison Project in Arctic (GTMIP)
Kazuyuki Saito1, Shin Miyazaki1,2, Junko Mori1,2, Takeshi Ise3, Takeshi Yamazaki4 and Hazuki Arakida5, (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
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, United Kingdom, (2)University of Exeter, Geography, Exeter, United Kingdom, (3)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (4)University of Exeter, 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
Megan Irene Behnke1, John D Schade1, Greg J Fiske2, Kyle A Whittinghill3 and Nikita Zimov4, (1)St. Olaf College, Northfield, MN, United States, (2)Woods Hole Research Center, Falmouth, MA, United States, (3)Saint Olaf College, Biology and Environmental Studies, Northfield, MN, United States, (4)Northeast Scientific Station, Cherskiy, Russia
 
Effects of Permafrost Thaw on Net Ecosystem Carbon Balance in a Subarctic Peatland
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
McKenzie Ann Kuhn, Wheaton College, Norton, MA, United States, Jessica Eason, Brown University, Providence, RI, United States, Sam Dunn, Colorado State University, Fort Collins, CO, United States, Seth Spawn, Saint Olaf College, Northfield, MN, United States and John D Schade, St. Olaf College, Northfield, MN, United States
 
Mapping Microbial Carbon Substrate Utilization Across Permafrost Thaw
Darya Anderson1, Virginia Isabel Rich1, Suzanne B Hodgkins2, Malak Tfaily3 and Jeffrey Chanton4, (1)University of Arizona, Tucson, AZ, United States, (2)Florida State University, Tallahassee, FL, United States, (3)Pacific Northwest National Lab, Richland, WA, United States, (4)Florida State Univ, Tallahassee, FL, United States
 
The Effect of Sedimentation Conditions of Frozen Deposits at the Kolyma Lowland on the Distribution of Methane and Microorganisms Activity
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, Fairbanks, AK, United States, (3)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia, (4)Institute of Physical Chemical and Biological Problems of Soil Science, Pushchino, Russia
 
Changes in Dissolved Carbon and Nitrogen Concentrations Along a Hill Slope Flow Path in Siberian Arctic Tundra
Julian Theberge, Western Washington University, Bellingham, WA, United States, John D Schade, St. Olaf College, Northfield, MN, United States, Greg J Fiske, Woods Hole Research Center, Falmouth, MA, United States, Michael M Loranty, Colgate University, Geography, Hamilton, NY, United States and Nikita Zimov, Northeast Scientific Station, Cherskiy, Russia
 
Shrub Expansion in Arctic Alaska Alters the Sources (14C) and Magnitudes of Ecosystem Respiration in the Continuous Permafrost Zone
Sandra R Holden1, Jeffrey M Welker2 and Claudia I Czimczik1, (1)University of California Irvine, Irvine, CA, United States, (2)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
 
Impact of downslope soil transport on carbon storage and fate in permafrost dominated landscapes
Eitan Shelef1, Joel C Rowland1, Cathy Jean Wilson1, Garrett Altmann1 and George E Hilley2, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Stanford University, Geological and Environmental Sciences, Stanford, CA, United States
 
Impact of warming and drying on microbial activity in subarctic tundra soils: inferences from patterns in extracellular enzyme activity
John D Schade1, Susan Natali2, Seth Spawn2, Seeta Sistla3 and Edward A G Schuur4, (1)St. Olaf College, Northfield, MN, United States, (2)Woods Hole Science Center Falmouth, Falmouth, MA, United States, (3)University of California Irvine, Irvine, CA, United States, (4)Univ Florida, Gainesville, FL, United States
 
Estimating and mapping of soil carbon stock using satellite data
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
Gareth George Trubl, Natalie Solonenko, Mario Moreno, Matthew B Sullivan and Virginia Isabel Rich, University of Arizona, Tucson, AZ, United States
 
Carbon Fluxes in a sub-arctic tundra undergoing permafrost degradation
Rosvel G Bracho1, Elizabeth Webb1, Marguerite Mauritz2 and Edward A G Schuur1, (1)University of Florida, Gainesville, FL, United States, (2)University of Florida, Ft Walton Beach, FL, United States
 
The effect of organic soil layer on simulated permafrost dynamics
Elchin E Jafarov, National Snow and Ice Data Center, Boulder, CO, United States and Kevin M Schaefer, University of Colorado, National Snow and Ice Data Center, Boulder, CO, United States
 
Effects of Fire on Ecosystem Carbon Exchange in Siberian Larch Forest
Susan Natali, Woods Hole Science Center Falmouth, Falmouth, MA, United States, Heather Dawn Alexander, University of Texas at Brownsville, Brownsville, TX, United States, Sergey Davydov, Russian Academy of Sciences, Moscow, Russia, Michael M Loranty, Colgate University, Geography, Hamilton, NY, United States, Michelle C Mack, University of Florida, Gainesville, FL, United States and Nikita Zimov, Northeast Scientific Station, 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
Yujin Zhang1, Helene Genet1, Mark J Lara1, Anthony David McGuire2, Jennifer Roach1, Vijay Patil1, Vladimir E Romanovsky3, William R Bolton3 and Ruth Rutter2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (3)International Arctic Research Center, Fairbanks, AK, United States
 
Permafrost Thaw in a Subarctic Peatland – Which Factors are Most Important?
Britta Sannel, Gustaf Hugelius and Peter Kuhry, Stockholm University, Stockholm, Sweden
 
Effects of Landscape Position on Carbon Cycling in Siberian Arctic Tundra
Salvatore Rex Curasi1, Luis R Weber2 and Michael M Loranty1, (1)Colgate University, Geography, Hamilton, NY, United States, (2)University of Puerto Rico Rio Piedras Campus, Department of Environmental Sciences, Cidra, PR, United States
 
Post-thaw carbon stock variation in a permafrost peatland of the boreal zone.
Nicolas Pelletier1, David Olefeldt2, Merritt R Turetsky3, Christian Blodau4 and Julie Talbot1, (1)University of Montreal, Montreal, QC, Canada, (2)University of Alberta, Edmonton, AB, Canada, (3)University of Guelph, Guelph, ON, Canada, (4)University of Münster, Münster, Germany
 
Consequences of artic ground squirrels on soil carbon loss from Siberian tundra
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 and Nikita Zimov, Northeast Scientific Station, Cherskiy, Russia
 
Shift of thermokarst lakes from methane source to climate-cooling carbon sink
Katey M Walter Anthony1, Sergei A Zimov2, Guido Grosse3, Miriam Jones4, Peter Anthony5, Terry Chapin5, Jacques C Finlay6, Michelle C Mack7, Sergey 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 Potsdam, Potsdam, Germany, (4)U.S. Geological Survey., Reston, VA, United States, (5)University of Alaska Fairbanks, Fairbanks, AK, United States, (6)University of Minnesota, Saint Paul, MN, United States, (7)University of Florida, Gainesville, FL, United States, (8)Russian Academy of Sciences, Moscow, Russia, (9)Max Planck Institute for Terrestrial Microbiology, Marburg, Germany, (10)Univ New Hampshire, Durham, NH, United States
 
Can Plant Community Turnover Mitigate Permafrost Thaw Feedbacks to the Climate System?
Moira Hough1, AJ Garnello1, Daniel Finnell2, Michael W Palace3, Virginia Isabel Rich1 and Scott R Saleska1, (1)University of Arizona, Tucson, AZ, United States, (2)University of New Hampshire Main Campus, Durham, NH, United States, (3)Complex System Research Center, Durham, NH, United States
 
ECOSYSTEM CARBON DYNAMICS IN RESPONSE TO FIVE WINTERS OF EXPERIMENTAL SOIL WARMING AND PERMAFROST DEGRADATION
Marguerite Mauritz1, Edward A G Schuur2, Rosvel G Bracho3, Gerardo Celis3, Susan Natali4, Jack Hutchins3, Verity G Salmon1 and Elizabeth Webb3, (1)University of Florida, Ft Walton Beach, FL, United States, (2)Northern Arizona University, Biology, Flagstaff, AZ, United States, (3)University of Florida, Gainesville, FL, United States, (4)Woods Hole Science Center Falmouth, Falmouth, MA, United States
 
The Effects of Permafrost Thaw on Organic Matter Quality and Availability Along a Hill Slope in Northeastern Siberia
Craig T Connolly, University of Texas at Austin, Marine Science Institute, Austin, TX, United States, Seth Spawn, Woods Hole Science Center Woods Hole, Woods Hole, MA, United States, Sarah Ludwig, University of Alaska Fairbanks, Fairbanks, AK, United States, John D Schade, Organization Not Listed, Washington, DC, United States and Susan Natali, Woods Hole Science Center Falmouth, Falmouth, MA, United States
 
Methane Emissions are Predominantly Derived from Contemporary Carbon from a Thawing Permafrost Peatland in Canada
Mark David Arthur Cooper1, Cristian Estop-Aragones2, James Paul Fisher3, Mark Garnett4, Dan Charman1, Julian Murton5, Gareth K Phoenix3, Rachael Treharne3, Lorna E Street6, Philip A Wookey7 and Iain P Hartley8, (1)University of Exeter, Exeter, EX4, United Kingdom, (2)University of Exeter, Geography, Exeter, United Kingdom, (3)University of Sheffield, Sheffield, United Kingdom, (4)NERC Radiocarbon Facility, Glasgow, United Kingdom, (5)University of Sussex, Brighton, United Kingdom, (6)Heriot Watt, School of Life Sciences, Edinburgh, United Kingdom, (7)Heriot-Watt University, Biological Sciences, Edinburgh, United Kingdom, (8)University of Exeter, Exeter, United Kingdom
 
Above and below ground carbon stocks in northeast Siberia tundra ecosystems: a comparison between disturbed and undisturbed areas
Luis R Weber1, Homero Pena III2, Salvatore Rex Curasi3, Erika Ramos2, Michael M Loranty3, Heather Dawn Alexander2 and Susan Natali4, (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, Geography, Hamilton, NY, United States, (4)Woods Hole Science Center Falmouth, Falmouth, MA, United States
 
Effects of Disturbances on Vegetation Composition and Permafrost Thaw in Boreal Forests and Tundra Ecosystems of the Siberian Arctic
Erika Ramos1, Heather Dawn Alexander1 and Susan Natali2, (1)University of Texas at Brownsville, Brownsville, TX, United States, (2)Woods Hole Science Center Falmouth, Falmouth, MA, United States
 
Changing environmental correlates of peatland C fluxes in a thawing landscape: do transitional thaw stages matter?
Avni Malhotra, McGill University, Montreal, QC, Canada 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
Taniya Roy Chowdhury1, David E Graham2 and Stan D Wullschleger2, (1)Oak Ridge National Lab, Oak Ridge, TN, United States, (2)Oak Ridge National Laboratory, Oak Ridge, TN, United States
 
Characterizing Soil Organic Matter Degradation Levels in Permafrost-affected Soils using Infrared Spectroscopy
Roser Matamala1, Julie D Jastrow1, Francisco Calderon2, Chao Liang1, R. Michael Miller1, Chien-Lu Ping3, Gary J Michaelson3 and Scott Hofmann1, (1)Argonne National Laboratory, Argonne, IL, United States, (2)United States Department of Agriculture, USDA-ARS Central Great Plains Research Station, Akron, CO, United States, (3)University of Alaska Fairbanks, Anchorage, AK, United States
 
Carbon Mineralization and Nitrogen Transformation During a Long Term Permafrost Incubation
Verity G Salmon, University of Florida, Ft Walton Beach, FL, United States, Michelle C Mack, University of Florida, Gainesville, FL, United States and Edward A G Schuur, Northern Arizona University, Biology, Flagstaff, AZ, United States
 
Microtopographic and Hydrological Controls over Respiratory Efflux and Late-Season Arctic Methane Emissions
Eric Wilkman, Donatella Zona and Walter C Oechel, San Diego State University, San Diego, CA, United States
 
Biogeochemical Controls on Microbial CO2 and CH4 Production in Polygonal Soils From the Barrow Environmental Observatory
David E Graham1, Taniya Roy Chowdhury2, Elizabeth Herndon3, Baohua Gu1, Liyuan Liang1 and Stan D Wullschleger1, (1)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (2)Oak Ridge National Lab, Oak Ridge, TN, United States, (3)Kent State University Kent Campus, Kent, OH, United States
 
See more of: Biogeosciences