GC14A:
Carbon in the Arctic: Influence of Climate Change in Aquatic and Terrestrial Ecosystems II

Monday, 15 December 2014: 4:00 PM-6:00 PM
Chairs:  Robert Northington, University of Maine, Orono, ME, United States and Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States
Primary Conveners:  Robert Northington, University of Maine, Orono, ME, United States
Co-conveners:  Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States, Christopher L Osburn, N Carolina St Univ--MEAS, Raleigh, NC, United States and N John Anderson, University of Loughborough, Loughborough, United Kingdom
OSPA Liaisons:  N. John Anderson, University of Loughborough, Loughborough, United Kingdom

Abstracts Submitted to this Session:

4:00 PM
 
Patterns and Changes in Dissolved Organic Carbon (DOC) across Lakes in Southwestern Greenland
Robert Northington1, Christopher L Osburn2, N John Anderson3 and Jasmine E Saros1, (1)University of Maine, Orono, ME, United States, (2)N Carolina St Univ--MEAS, Raleigh, NC, United States, (3)University of Loughborough, Loughborough, United Kingdom
4:15 PM
 
Variability of Organic Carbon Burial By SW Greenland Lakes: The Role of Location and Regional Climate
Nicholas J Anderson1, Erika J Whiteford1, Vivienne Jones2, Sherilyn C Fritz3, Handong Yang2, Peter Appleby4 and Richard Bindler5, (1)University of Loughborough, Loughborough, United Kingdom, (2)University College London, London, United Kingdom, (3)University of Nebraska - Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States, (4)University of Liverpool, Liverpool, United Kingdom, (5)Umea Univ, Umea, Sweden
4:30 PM
 
Quantifying the effect size of changing environmental controls on carbon release from permafrost-affected soils
Christina Schaedel1, Martin K. F. Bader2, Edward A G Schuur3, Rosvel G Bracho1, Petr Capek4, Sarah L De Baets5, Katka Diakova4, Jessica Gilman Ernakovich6, Iain P Hartley5, Colleen M. Iversen7, Evan S Kane8, Christian Knoblauch9, Massimo Lupascu10, Susan Natali11, Richard J Norby12, Jonathan A. O'Donnell13, Taniya Roy Chowdhury12, Hana Santruckova4, Gaius R Shaver14, Victoria L Sloan15, Claire C Treat16 and Mark P Waldrop17, (1)University of Florida, Gainesville, FL, United States, (2)New Zealand Forest Research Institute, Rotorua, New Zealand, (3)Univ Florida, Gainesville, FL, United States, (4)University of South Bohemia, Ceske Budejovice, Czech Republic, (5)University of Exeter, Exeter, United Kingdom, (6)Division of Land and Water, CSIRO, Glen Osmond, Australia, (7)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (8)Michigan Tech Univ--SFRES, Hancock, MI, United States, (9)University of Hamburg, Institute of Soil Science, Hamburg, Germany, (10)Univ of California, Irvine, Irvine, CA, United States, (11)Woods Hole Science Center Falmouth, Falmouth, MA, United States, (12)Oak Ridge National Lab, Oak Ridge, TN, United States, (13)National Park Service Anchorage, Anchorage, AK, United States, (14)Marine Bio Lab, Woods Hole, MA, United States, (15)ORNL, Bristol, United Kingdom, (16)University of Alaska Fairbanks, Fairbanks, AK, United States, (17)US Geological Survey, Menlo Park, CA, United States
4:45 PM
 
Artificial Warming and Rain Addition Increase Phenol Oxidase Activity in Arctic Soils
Hojeong Kang1, Juyoung Seo1, Inyoung Jang2 and Yoo Kyung Lee3, (1)Yonsei University, Seoul, South Korea, (2)National Institute for Ecology, Korea, Seochon, South Korea, (3)Korea Polar Research Insitute, Incheon, South Korea
5:15 PM
 
Surface-Atmosphere Carbon Exchange from an Arctic Wetland
John Kochendorfer1, Mark Heuer2, Edward J Dumas2, Tilden P Meyers2, Ronald Dobosy3, Bruce Baker3, Claire E Healy4, Jason Brent Munster4, David S Sayres4 and James G Anderson4, (1)NOAA Oak Ridge, Atmospheric Turbulence and Diffusion Division, Oak Ridge, TN, United States, (2)NOAA/ATDD, Oak Ridge, TN, United States, (3)NOAA Oak Ridge, Oak Ridge, TN, United States, (4)Harvard University, Cambridge, MA, United States
5:30 PM
 
The net exchange of methane with high Arctic landscapes during the summer growing season
Vincent L St.Louis1, Craig A. Emmerton1, Igor Lehnherr1, Elyn Humphreys2, Elizabeth Rydz1 and Hayley Kosolofski1, (1)University of Alberta, Edmonton, AB, Canada, (2)Carleton University, Ottawa, ON, Canada
5:45 PM
 
A weak C sink at high latitudes: support from an integrated terrestrial – aquatic C balance
Erik J Lundin1,2, Torben R Christensen3, Reiner Giesler2, Michal Heliasz3, Jonatan Klaminder2, Andreas Persson4 and Jan Karlsson2, (1)Stockholm University, Stockholm, Sweden, (2)Umeå University, Umeå, Sweden, (3)Lund University, Physical Geography and Ecosystem Sciences, Lund, Sweden, (4)Lund University, Lund, Sweden