B41O:
Vulnerability of Permafrost Carbon to Climate Change II

Thursday, 18 December 2014: 8:00 AM-10:00 AM
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:

8:00 AM
B41O-01
 
Climate Change and the Permafrost Carbon Feedback
Edward A G Schuur1,2, Anthony David McGuire3, Guido Grosse4, Jennifer W Harden5, Daniel J Hayes6, Gustaf Hugelius7, Charles D Koven8, Peter Kuhry7, David M Lawrence9, Susan Natali10, David Olefeldt11, Vladimir E Romanovsky12, Christina Schaedel2, Kevin M Schaefer13, Merritt R Turetsky14, Claire C Treat12 and Jorien Vonk15, (1)Northern Arizona University, Biology, Flagstaff, AZ, United States, (2)University of Florida, Gainesville, FL, United States, (3)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (5)USGS California Water Science Center Menlo Park, Menlo Park, CA, United States, (6)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (7)Stockholm University, Stockholm, Sweden, (8)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (9)National Center for Atmospheric Research, Boulder, CO, United States, (10)Woods Hole Science Center Falmouth, Falmouth, MA, United States, (11)University of Alberta, Edmonton, AB, Canada, (12)University of Alaska Fairbanks, Fairbanks, AK, United States, (13)University of Colorado, National Snow and Ice Data Center, Boulder, CO, United States, (14)University of Guelph, Guelph, ON, Canada, (15)Utrecht University, Utrecht, 3584, Netherlands
8:15 AM
B41O-02
 
Carbon Pool of Permafrost in Kolyma-Indigirka Lowland
Denis Shmelev1, Alexandra Veremeeva2, Gleb Kraev3, Alexander L Kholodov4 and Elizaveta Rivkina1, (1)Institute of Physical Chemical and Biological Problems of Soil Science, Pushchino, Russia, (2)Institute of Physicochemical and Biological Problems in Soil Science, Pushchino, Russia, (3)Center of Ecology and Productivity of Forests, Moscow, Russia, (4)University of Alaska Fairbanks, Fairbanks, AK, United States
8:30 AM
B41O-03
 
Ancient CO2 Emissions from the High Arctic-Svalbard in Winter: Responses to Deeper Winter Snow in a Permafrost Dominated Landscape
Jeffrey M Welker1, Massimo Lupascu2, Molly Welker3, Elisabeth Cooper4 and Claudia I Czimczik2, (1)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States, (2)Univ of California, Irvine, Irvine, CA, United States, (3)University of Alaska Anchorage, Anchorage, AK, United States, (4)University of Tromsø, Arctic and Marine Biology, Tromsø, Norway
8:45 AM
B41O-04
 
Age of Dissolved Organic Carbon across an Arctic Landscap
Karis J McFarlane, Lawrence Livermore National La, Livermore, CA, United States, Heather Throckmorton, Los Alamos National Laboratory, Los Alamos, NM, United States and Thomas P Guilderson, Lawrence Livermore National Laboratory, Livermore, CA, United States
9:00 AM
B41O-05
 
Carbon and Nutrient Limitation of Microbial Decomposition of Organic Matter in Permafrost Soils
Andreas Richter1,2, Jiri Barta3, Petr Capek3, Norman Gentsch4, Georg Guggenberger4, Christina Kaiser5, Robert Mikutta4, Olga Shibistova4, Hana Santruckova3, Joerg Schnecker1,2 and Birgit Wild1,2, (1)University of Vienna, Vienna, Austria, (2)Austrian Polar Research Institute, Vienna, Austria, (3)University of South Bohemia, Ceske Budejovice, Czech Republic, (4)Leibniz Universität Hannover, Hannover, Germany, (5)University of Vienna, Microbiology and Ecosystem Science, Vienna, Austria
9:15 AM
B41O-06
 
Variations in the Horizontal and Vertical Distributions of Organic Carbon Stocks across Ice Wedge Polygons of Arctic Alaska
Julie D Jastrow1, Chien-Lu Ping2, Roser Matamala1, Timothy W Vugteveen1, Jeremy S Lederhouse1 and Gary J Michaelson2, (1)Argonne National Laboratory, Argonne, IL, United States, (2)University of Alaska Fairbanks, Palmer, AK, United States
9:30 AM
B41O-07
 
Controlled Freeze-thaw Experiments to Study Biogeochemical Process and its Effects on Greenhouse Gas Release in Arctic Soil Columns
Yuxin Wu, Timothy J Kneafsey, Neslihan Tas, Markus Bill, Craig Ulrich and Susan S. Hubbard, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
9:45 AM
B41O-08
 
In Situ Contribution of Old Respired CO2 from Soils in Burnt and Collapsed Permafrost in Canada
Cristian Estop-Aragones1, James Paul Fisher2, Mark Cooper1, Aaron Thierry3, Mathew Dr Williams3, Gareth K Phoenix2, Julian Murton4, Dan Charman5 and Iain P Hartley1, (1)University of Exeter, College of Life and Environmental Sciences, Exeter, United Kingdom, (2)University of Sheffield, Sheffield, United Kingdom, (3)School GeoSciences, Edinburgh, United Kingdom, (4)University of Sussex, Brighton, United Kingdom, (5)University of Exeter, College of Life and Environmental Sciences, Exeter, EX4, United Kingdom
 
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