B41I:
Vulnerability of Permafrost Carbon to Climate Change III Posters

Submit an Abstract to this Session



Session ID#: 25556

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:  Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States
Convener:  Benjamin W Abbott, Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States
Chairs:  Benjamin W Abbott, Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
OSPA Liaison:  Benjamin W Abbott, Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
0702 Permafrost [CRYOSPHERE]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Quantification of Surface Subsidence Using Real-Time Kinematic GPS in Experimentally Warmed Permafrost (264711)
Heidi Rodenhizer, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
Soil greenhouse gas flux, soil moisture, and soil temperature variability among three plant communities from 2015 to 2017 in a High-Arctic lake basin, Northwest Greenland (265889)
Julie McKnight Konkel, University of Tennessee, Knoxville, TN, United States, Jeffrey M Welker, University of Alaska Anchorage, Department of Biological Sciences, Anchorage, United States and Sean M Schaeffer, University of Tennessee, Biosystems Engineering and Soil Science, Knoxville, TN, United States
Effect of soil moisture on the temperature sensitivity of Northern soils (272023)
Christina Minions1,2, Susan Natali3, Sarah Ludwig3, David A Risk4 and Chris M Macintyre4, (1)St. Francis Xavier University, Earth Science, Antigonish, NS, Canada, (2)Woodwell Climate Research Center, Falmouth, United States, (3)Woods Hole Research Center, Falmouth, MA, United States, (4)St. Francis Xavier University, Earth Sciences, Antigonish, NS, Canada
Towards a global harmonized permafrost soil organic carbon stock estimates. (278315)
Umakant Mishra, Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, Gustaf Hugelius, Stockholm University, Stockholm, Sweden, Yuanhe Yang, University of Oklahama, Norman, OK, United States and The permafrost carbon network
Seasonal and Downslope Changes in the Pore Water Geochemistry of Tundra Soils Near Nome, Alaska (284559)
Michael J Philben1, Jianqiu Zheng2, Stan D Wullschleger1, David E Graham3 and Baohua Gu1, (1)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)Oak Ridge National Lab, Biosciences Division, Oak Ridge, United States
Effect of Tundra Fires on Stream Chemistry in Alaska’s Yukon-Kuskokwim Delta (284728)
Jordan Andrew Jimmie1, Dr. Paul James Mann2, John D Schade3, Susan Natali3, Greg Fiske3 and Robert Max Holmes3, (1)University of Montana, Missoula, MT, United States, (2)Northumbria University, Newcastle-Upon-Tyne, United Kingdom, (3)Woods Hole Research Center, Falmouth, MA, United States
Role of Fire and Landscape Position on Dissolved Organic Carbon Composition and Reactivity in the Yukon-Kuskokwim Delta, Alaska (292731)
Emily M Bristol1, Jessica S Dabrowski2, Jordan Andrew Jimmie3, Darcy L. Peter4, Robert Max Holmes5, Dr. Paul James Mann6, Susan Natali5 and John D Schade5, (1)St. Olaf College, Northfield, United States, (2)MIT / WHOI Joint Programme in Oceanography, Woods Hole, MA, United States, (3)University of Montana, Missoula, MT, United States, (4)Woods Hole Research Center, Arctic boreal research, Falmouth, MA, United States, (5)Woods Hole Research Center, Falmouth, MA, United States, (6)Northumbria University, Newcastle-Upon-Tyne, United Kingdom
Identifying Factors Causing Variability in Greenhouse Gas (GHG) Fluxes in a Polygonal Tundra Landscape (294211)
Bhavna Arora1, Haruko M Wainwright2, Lydia Smith Vaughn3, John Bryan Curtis3, Margaret S Torn4, Baptiste Dafflon3 and Susan S Hubbard3, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Berkeley Lab/UC Berkeley, Berkeley, United States
The influence of soil organic matter chemistry and site/soil properties in predicting the decomposability of tundra soils (294598)
Roser Matamala1, Julie D Jastrow1, Zhaosheng Fan2, Chao Liang3, Francisco Calderon4, Gary Michaelson5, Umakant Mishra6 and Chien-Lu Ping7, (1)Argonne National Laboratory, Argonne, IL, United States, (2)United States Department of Agriculture, Range Management Research, Las Cruces, NM, United States, (3)CAS Chinese Academy of Sciences, Institute of Applied Ecology, Beijng, China, (4)United States Department of Agriculture, USDA-ARS Central Great Plains Research Station, Akron, CO, United States, (5)University of Alaska Fairbanks, Fairbanks, United States, (6)Argonne National Laboratory, Environmental Science Division, Argonne, United States, (7)University of Alaska Fairbanks, Palmer, United States
Impacts of Vegetation on CO2 exchange, permafrost thaw depth, and NDVI in Alaskan tundra. (300359)
Lukas Kerr, Fort Lewis College, Durango, CO, United States, Heidi Steltzer, Iliff School of Theology, Denver, United States, Susan Natali, Woods Hole Research Center, Falmouth, MA, United States, John D Schade, Organization Not Listed, Washington, DC, United States, Dr. Paul James Mann, Northumbria University, Newcastle-Upon-Tyne, United Kingdom, Robert Max Holmes, Deputy Director, Senior Scientist, Falmouth, MA, United States and Sierra Melton, Pennsylvania State University, Geology, State College, United States
Towards Understanding the Contribution of Waterbodies to the Methane Emissions of a Permafrost Landscape on a Regional Scale – A Case Study from the Mackenzie Delta, Canada (216523)
Katrin Kohnert1, Bennet Juhls2, Sina Muster3, Sofia Antonova4, Andrei Serafimovich1 and Torsten Sachs1, (1)GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Institute for Space Sciences, Department of Earth Sciences, Freie Universität Berlin, Carl-Heinrich-Becker-Weg 6–10, Berlin, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (4)GIScience, Department of Geography, Heidelberg University, Heidelberg, Germany
Tundra ecosystem respiration is dominated by recent C inputs, masking contributions from old and more decomposed substrates (219044)
Marguerite Mauritz1, Gerardo Celis2, Christopher Ebert3, Jack A Hutchings4, Justin Ledman5, Elaine Pegoraro6, Verity Salmon7, Christina Schaedel8, Meghan Taylor9 and Edward Schuur9, (1)University of Texas at El Paso, Biological Sciences, El Paso, TX, United States, (2)University of Florida, Agronomy, Gainesville, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, United States, (4)University of Florida, Gainesville, FL, United States, (5)Bonanza Creek Long Term Ecological Research Site, Fairbanks, United States, (6)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (7)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Sciences Institute, Oak Ridge, TN, United States, (8)Northern Arizona University, Flagstaff, AZ, United States, (9)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
A Multi-Biomarker Biogeochemical Investigation of a Permafrost Core from Interior Alaska Dating to 40,000 Years Before Present: Insight Into Millenial-Scale Carbon Accumulation and Degradation Status (230257)
Jack Hutchings, University of Florida, Ft Walton Beach, FL, United States, Thomas S S Bianchi, University of Florida, Geological Sciences, Ft Walton Beach, FL, United States, Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, Darrell S Kaufman, Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States, Alexander L Kholodov, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States and Derrick Vaughn, Utah State University, Logan, United States
Effects of Fire on Understory Vegetation Communities in Siberian Boreal Forests and Alaskan Tundra (232265)
Homero Pena III1, Heather Dawn Alexander2, Susan Natali3, Michael M Loranty4, Robert Max Holmes3, Michelle C Mack5, John D Schade6, Dr. Paul James Mann7, Sergey P Davydov8, Brent Frey1, Nikita Zimov9 and Laura E Jardine10, (1)Mississippi State University, Starkville, MS, United States, (2)Auburn University, Auburn, United States, (3)Woods Hole Research Center, Falmouth, MA, United States, (4)Colgate University, Geography, Hamilton, NY, United States, (5)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (6)Organization Not Listed, Washington, DC, United States, (7)Northumbria University, Newcastle-Upon-Tyne, United Kingdom, (8)Far Eastern Branch of Russian Academy of Sciences, Pacific Institute of Geography, North-East Science Station, Cherskii, Russia, (9)Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia, (10)Undergraduate, Oklahoma City, OK, United States
Nitrogen availability drives priming effect by altering microbial carbon-use efficiency after permafrost thaw (235367)
Leiyi Chen1, Li Liu1, Qiwen Zhang1, Chao Mao1, Futing Liu1 and Yuanhe Yang2, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)Chinese Academy of Sciences, Beijing, China
Methane efflux measured by eddy covariance in Alaskan upland tundra undergoing permafrost degradation (236579)
Meghan Taylor, Northern Arizona University, ECOSS, Flagstaff, AZ, United States, Gerardo Celis, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, Justin Ledman, University of Alaska Fairbanks, Fairbanks, United States, Rosvel G Bracho, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States and Edward Schuur, Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States
The impact of fire on nitrogen availability in the Yukon Kuskokwim Delta, Alaska (237057)
Laura Jardine1, Susan Natali2, John D Schade2, Robert Max Holmes2, Dr. Paul James Mann3 and Homero Pena III4, (1)Organization Not Listed, Department of Biology, Washington, DC, United States, (2)Woods Hole Research Center, Falmouth, MA, United States, (3)Northumbria University, Newcastle-Upon-Tyne, United Kingdom, (4)Mississippi State University, Starkville, MS, United States
The effects of fire on greenhouse gas fluxes from mosses and lichen patches in the Yukon Kuskokwim Delta, AK. (237067)
Edauri Navarro-Perez1, Susan Natali2, John D Schade2, Robert Max Holmes2 and Dr. Paul James Mann3, (1)University of Puerto Rico Rio Piedras Campus, San Juan, PR, United States, (2)Woods Hole Research Center, Falmouth, MA, United States, (3)Northumbria University, Newcastle-Upon-Tyne, United Kingdom
Dissolved organic carbon biodegradability from thawing permafrost stimulated by sunlight rather than inorganic nitrogen (237230)
Futing Liu1, Leiyi Chen1, Beibei Zhang1, Guanqin Wang1, Shuqi Qin1 and Yuanhe Yang2, (1)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (2)Institute of Botany, Chinese Academy of Sciences, Beijing, China
Dissolved organic carbon and nitrogen release from Holocene permafrost and seasonally frozen soils (240910)
Kimberly Wickland, USGS, Boulder, United States, Mark P Waldrop, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, United States, Joshua C Koch, USGS, Anchorage, AK, United States, Torre Jorgenson, Alaska Ecoscience, Fairbanks, AK, United States and Robert G Striegl, US Geological Survey, Boulder, CO, United States
Concentration and age of DOC transported from thawing permafrost soils into Arctic headwater streams (248152)
Emily Leslie Romano1, Kimberly Wickland2, Christopher Ebert3 and Edward Schuur1, (1)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (2)U.S. Geological Survey, Denver, CO, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, United States
Organic carbon biolabilty increases with depth in a yedoma permafrost profile in Interior Alaska (255812)
Joanne K. Heslop1, Katey M Walter Anthony2, Robert G Spencer3, Matthias Winkel4, Mingchu Zhang5, Susanne Liebner6, David C Podgorski7, Phoebe Zito7 and Alexander L Kholodov8, (1)Queen's University, Kingston, ON, Canada, (2)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (3)Florida State University, Tallahassee, FL, United States, (4)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (5)University of Alaska Fairbanks, Fairbanks, AK, United States, (6)GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany, (7)University of New Orleans, Department of Chemistry, New Orleans, LA, United States, (8)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States

See more of: Biogeosciences