B22D:
Vulnerability of Permafrost Carbon to Climate Change I


Submit an Abstract to this Session


Session ID#: 60006

Session Description:
Permafrost zone soils contain 1330-1580 Pg of organic carbon (C). Permafrost degradation can decrease ecosystem C storage by enhancing microbial activity and ecosystem respiration, but can also stimulate plant growth and lateral C flux, potentially increasing C stored in vegetation, soil, and sediment. This session invites papers that examine factors causing losses and gains in ecosystem C storage that relate to the question: What is the magnitude, timing, and form of C release from permafrost zone ecosystems to the atmosphere in a changing climate? Papers may address any aspect of this topic from molecular to global scales, using measurements or modeling to detect or forecast permafrost thaw and its influence on the C cycle and climate.
Primary Convener:  Christina Schaedel, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States
Conveners:  Jessica Gilman Ernakovich, University of New Hampshire Main Campus, Department of Natural Resources and the Environment, Durham, NH, United States; University of New Hampshire Main Campus, Natural Resources and the Environment, Durham, NH, United States and Edward Schuur, Univ Florida, Gainesville, United States; Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
Primary Liaison:  Christina Schaedel, Woodwell Climate Research Center, Falmouth, United States
Chairs:  Christina Schaedel, Woodwell Climate Research Center, Falmouth, United States and Jessica Gilman Ernakovich, University of New Hampshire Main Campus, Department of Natural Resources and the Environment, Durham, NH, United States
OSPA Liaison:  Christina Schaedel, Woodwell Climate Research Center, Falmouth, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
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]

Abstracts Submitted to this Session:

Climate Warming Accelerated by Abrupt Permafrost Thaw Beneath Lakes (420701)
Katey M Walter Anthony1, Thomas Schneider von Deimling2, Ingmar Nitze3, Steve E Frolking4, Abraham Emond5, Ronald P Daanen6, Peter Anthony1, Prajna Regmi7 and Guido Grosse8, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (3)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Potsdam, Germany, (4)University of New Hampshire, Durham, United States, (5)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States, (6)DGGS, Fairbanks, AK, United States, (7)University of Alaska Fairbanks, Anchorage, AK, United States, (8)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany
Effects of permafrost thaw and changes in soil moisture on CH4 and CO2 fluxes in Alaskan upland tundra (427289)
Meghan Taylor, Northern Arizona University, ECOSS, Flagstaff, AZ, United States, Marguerite Mauritz, University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, Dr. Colleen M. Iversen, PhD, Oak Ridge National Laboratory, Oak Ridge, United States, Erin Trochim, University of Alaska Fairbanks, Fairbanks, AK, United States, Susan Natali, Woodwell Climate Research Center, Falmouth, United States, Justin Ledman, University of Alaska Fairbanks, Fairbanks, United States and Edward Schuur, Univ Florida, Gainesville, United States
Thicker Snow Cover Triggers Lateral Permafrost Carbon Loss Both Through Enhanced Warming and Surface Runoff (434388)
Frans-Jan W Parmentier1,2, Lennart Nilsen3, Hans A Tømmervik4, Ove Meisel5, Lisa Bröder5, Jorien Vonk5, Philipp R. Semenchuk3,6 and Elisabeth Cooper3, (1)University of Oslo, Department of Geosciences, Oslo, Norway, (2)Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden, (3)The Arctic University of Norway, Department of Arctic and Marine Biology, Tromsø, Norway, (4)Norwegian Institute for Nature Research, FRAM – High North Research Centre for Climate and the Environment, Tromsø, Norway, (5)Vrije Universiteit Amsterdam, Department of Earth Sciences, Amsterdam, Netherlands, (6)University of Vienna, Department of Botany and Biodiversity Research, Vienna, Austria
Divergent Responses of a Rich Fen in Interior Alaska to Inundation: Interannual Variation in Carbon Fluxes and Water Balance (423371)
Eugenie Susanne Euskirchen, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, Evan S Kane, Michigan Technological University, College of Forest Resources and Environmental Sciences, Houghton, United States, Merritt R Turetsky, Renewable and Sustainable Energy Institute, Department of Ecology and Evolutionary Biology, Boulder, United States and Colin Edgar, Univesity of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States
New Insights Test our Fundamental Understanding of How Thermokarst Influences Permafrost Peatlands (434604)
Merritt R Turetsky, University of Guelph, Department of Integrative Biology, Guelph, ON, Canada, Miriam Jones, U.S. Geological Survey., Reston, United States, David Olefeldt, University of Alberta, Edmonton, AB, Canada, Mark P Waldrop, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, United States, Eugenie Susanne Euskirchen, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, Evan S Kane, Michigan Technological University, College of Forest Resources and Environmental Sciences, Houghton, United States, Thomas A Douglas, USA CRREL Alaska, Fort Wainwright, AK, United States, Gustaf Hugelius, Stockholm University, Department of Physical Geography, Stockholm, Sweden, Kristen Manies, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Moffett FIeld, United States, Colby Moorberg, Kansas State University, Department of Agronomy, Manhattan, KS, United States and Rebecca Bergquist Neumann, University of Washington, Civil & Environmental Engineering, Seattle, United States
Frozen in Time? Metabolic Processes and Survival Strategies of Microbial Communities in Ancient Permafrost. (Invited) (345650)
Rachel Mackelprang, California State University Northridge, Northridge, CA, United States
Including microbial dynamics is essential for modelling Arctic methane emissions (438421)
Sarah Chadburn1, Yuanchao Fan2, Tuula Aalto3, Mika Aurela3, Annett Bartsch4, Julia Boike5, Eleanor J Burke6, Casper Christiansen7, Edward Comyn-Platt8, A Johannes Dolman9, Thomas Friborg10, Nicola Gedney11, David Holl12, Garry Hayman13, Gustaf Hugelius14, Ko J van Huissteden15, Mathilde Jammet16, Lars Kutzbach12, Hanna Lee17, Annalea Lohila3, Maija E Marushchak18, Frans-Jan W Parmentier19, Andreas Richter20, Torsten Sachs21 and Narasinha J Shurpali22, (1)University of Exeter, Faculty of Environment, Science and Economy, Exeter, United Kingdom, (2)Harvard University, Center for the Environment, Cambridge, MA, United States, (3)Finnish Meteorological Institute, Helsinki, Finland, (4)Zentralanstalt für Meteorologie und Geodynamik, Vienna, Austria, (5)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Potsdam, Germany, (6)Met Office Hadley Centre, Terrestrial Carbon Cycle Team, Exeter, United Kingdom, (7)Bjerknes Centre for Climate Research, Bergen, Norway, (8)Center for Ecology and Hydrology, Wallingford, United Kingdom, (9)Royal Netherlands Institute for Sea Research, Department of Earth Sciences, Den Burg, Netherlands, (10)University of Copenhagen, Department of Geosciences and Natural Resource Management, København K, Denmark, (11)Met Office Hadley Centre, Exeter, United Kingdom, (12)Universität Hamburg, Center for Earth System Research and Sustainability, Institute of Soil Science, Hamburg, Germany, (13)Centre for Ecology and Hydrology, Wallingford, United Kingdom, (14)Stockholm University, Department of Physical Geography, Stockholm, Sweden, (15)Free University of Amsterdam, Amsterdam, 1081, Netherlands, (16)University of Copenhagen, Center for Permafrost, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark, (17)Norwegian Research Centre (NORCE), Bjerknes Centre for Climate Research, Bergen, Norway, (18)University of Eastern Finland, Joensuu, Finland, (19)Arctic Research Centre, Aarhus University, Aarhus, Denmark, (20)University of Vienna, Centre for Microbiology and Environmental Systems Science, Vienna, Austria, (21)GFZ German Research Centre for Geosciences, Potsdam, Germany, (22)Natural Resources Institute Finland, Helsinki, Finland

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