B23E:
Understanding Mechanisms Governing Ecosystem Biogeochemical Cycling in the Solid, Liquid, and Gas Phase: Physiology vs. Physics and Chemistry II Posters

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Session ID#: 15152

Session Description:
Soils are the largest global source of N2O emissions. In cold climates, nitrous oxide emissions are enhanced by freeze-thaw cycles and can be a significant proportion of the annual emissions from soils.  A combination of microbially -driven processes and physico-chemical conditions induced by freeze/thaw cycles are related to enhanced N2O emissions, but the interactions between these key drivers are not well understood. A warming and more variable climate could increase the frequency, duration, and spatial extent of freeze-thaw events in cold climates. Improved knowledge of the extent of freeze-thaw enhanced N2O emissions and driving mechanisms is essential to predicting the impact of climate change on N2O emissions from soils. This session will bring together researchers examining the combination and interaction of microbial and physical mechanisms on N2O emissions during freeze-thaw cycles.
Primary Convener:  Peter M Homyak, University of California Riverside, Environmental Sciences, Riverside, CA, United States
Conveners:  Martin Maier, University of Freiburg, Chair of Soil Ecology, Freiburg, Germany, Nicolas Brueggemann, Institute of Bio- and Geosciences – Agrosphere (IBG 3), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany, Julich, Germany and Claudia Wagner-Riddle, University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
Chairs:  Martin Maier, University of Freiburg, Chair of Soil Ecology, Freiburg, Germany and Peter M Homyak, University of California Riverside, Environmental Sciences, Riverside, CA, United States
OSPA Liaison:  Claudia Wagner-Riddle, University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
Index Terms:

0404 Anoxic and hypoxic environments [BIOGEOSCIENCES]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0463 Microbe/mineral interactions [BIOGEOSCIENCES]
0490 Trace gases [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

Extracting information about solute uptake kinetics in advective-dispersive transport based on instantaneous-release tracer experiments in streams (186238)
Robert Alden Payn1,2, Steven A Thomas3, Tim P Covino1 and Lauren Koenig4, (1)Montana State University, Department of Land Resources and Environmental Sciences, Bozeman, MT, United States, (2)Montana University System, Institute on Ecosystems, Bozeman, MT, United States, (3)University of Nebraska Lincoln, Lincoln, United States, (4)University of New Hampshire Main Campus, Durham, NH, United States
Using gallium as a tracer of aluminum in the Critical Zone: influences on terrestrial cycling from vegetation. (136234)
Justin B Richardson, Cornell University, Ithaca, NY, United States and Louis A Derry, Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, United States
Kinetics of abiotic nitrous oxide production via oxidation of hydroxylamine by particulate metals in seawater (195214)
Amanda Rae Cavazos, Georgia Institute of Technology Main Campus, Atlanta, GA, United States, Martial Taillefert, Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States and Jennifer B Glass, Georgia Institute of Technology Main Campus, School of Earth and Atmospheric Sciences, Atlanta, GA, United States
Linking Changes in Snow Cover with Nitrogen Cycling and Microbial Abundance and Functional Gene Expression in Agricultural Soils (128824)
Claudia Goyer1, Lindsay Brin1, Bernie Zebarth2, David Burton3, Sophie Wertz2 and Martin Chantigny4, (1)Agriculture and Agri-Food Canada, Ottawa, ON, Canada, (2)Agriculture and Agri-Food Canada, Fredericton Research and Development Centre, Fredericton, NB, Canada, (3)Dalhousie University, Halifax, NS, Canada, (4)Agriculture and Agri-Food Canada, Quebec Research and Development Centre, Quebec, QC, Canada
Drivers of nitrous oxide emissions during thaw of agricultural soils in the mid-continental climate of Manitoba (135931)
Mario Tenuta1, Xiaopeng Gao1, Brian D Amiro1, Matt Gervais2 and Megan Westphal2, (1)University of Manitoba, Department of Soil Science, Winnipeg, MB, Canada, (2)University of Manitoba, Winnipeg, MB, Canada
Acidity and organic matter stimulate abiotic nitric oxide emissions in drying soils (136253)
Peter M Homyak, University of California Irvine, Irvine, CA, United States, Matthew T Kamiyama, University of California Riverside, Riverside, CA, United States, James O Sickman, University of California, Riverside, Department of Environmental Sciences, Riverside, CA, United States and Joshua Schimel, University of California Santa Barbara, Santa Barbara, CA, United States
Direct N2O Fluxes from Agroecosystems in Cold Climates: Importance of Soil Freeze-Thaw (163635)
Katelyn A Congreves1, Claudia Wagner-Riddle2, Diego Abalos3, Jaison Thomas Ambadan Thomas4, Shannon Elizabeth Brown2, Mario Tenuta5, Xiaopeng Gao5, Brian D Amiro5 and Aaron A Berg6, (1)University of Saskatchewan, Saskatoon, SK, Canada, (2)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada, (3)Wageningen University and Research Center, Department of Soil Quality, Wageningen, Netherlands, (4)University of Guelph, Department of Geography, Guelph, ON, Canada, (5)University of Manitoba, Department of Soil Science, Winnipeg, MB, Canada, (6)University of Guelph, Department of Geography, Environment and Geomatics, Guelph, ON, Canada
Potential nitrous oxide yield of AOA vs. AOB and utilization of carbon and nitrogen in the ammonia oxidizing process in the Pearl River Estuary (153922)
Li Ma, Xiamen University, Xiamen, China, Minhan Dai, Xiamen University, State Key Laboratory of Marine Environmental Science, Xiamen, China; Xiamen University, State Key Laboratory of Marine Environmental Science; College of Ocean and Earth Sciences, Xiamen, China, Shangjin Tan, Hong Kong University of Science and Technology, Hong Kong, China, Xiaomin Xia, Hong Kong University of Science and Technology, Hong Kong, Hong Kong and Hongbin Liu, Hong Kong University of Science and Technology, Division of Life Science, Hong Kong, Hong Kong
Soil Rewetting Respiration Dynamics Across a Lithologic Gradient (182862)
Eric Slessarev, Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, Livermore, United States and Joshua Schimel, University of California Santa Barbara, Santa Barbara, CA, United States
Comparing Rooting Depth and Niche Partitioning Between Shale and Sandstone Derived Soils in Central Pennsylvania Mixed Forests (160392)
Ismaiel Szink1,2, Thomas S Adams2, Alexandra S. Orr1,2, Maggie Ruppel2, Siobhan Donnelly2, Liza I Brazil2 and David M Eissenstat1,2, (1)Pennsylvania State University Main Campus, Intercollege Graduate Degree Program in Ecology, University Park, PA, United States, (2)Pennsylvania State University Main Campus, Department of Ecosystem Science and Management, University Park, PA, United States
Reducing conditions can alter the source of respired carbon and stimulate decomposition in mineral soils (128657)
Wenjuan Huang, Iowa State University, Department of Ecology, Evolution, and Organismal Biology, Ames, IA, United States and Steven J Hall, Iowa State University, Department of Ecology, Evolution, and Organismal Biology, AMES, United States
Chemical, physical, and biological controls on the spatial heterogeneity of annual soil CO2 and CH4 fluxes (159302)
Daniel L Warner, University of Delaware, Delaware Geological Survey, Newark, DE, United States, Shreeram P Inamdar, University of Delaware, Plant & Soil Sciences, Newark, DE, United States and Prof. Rodrigo Vargas, Arizona State University, School of Life Sciences, Tempe, United States
Direct observation of wind-induced pressure-pumping on soil gas transport (133275)
Thomas Laemmel1, Martin Maier2, Manuel Mohr3, Dirk Schindler3, Helmer Schack-Kirchner1 and Friederike Lang2, (1)University of Freiburg, Chair of Soil Ecology, Freiberg, Germany, (2)University of Freiburg, Chair of Soil Ecology, Freiburg, Germany, (3)University of Freiburg, Chair of Environmental Meteorology, Freiberg, Germany
What a difference a year makes: Patterns in CO2 and N2O accumulation during winter and surface and subsurface emissions. (174053)
David Burton1, Drucie Janes1 and Jennifer Haverstock2, (1)Dalhousie University, Halifax, NS, Canada, (2)Perennia, Truro, NS, Canada
The Necessity of Determining the Gas Transfer Coefficient In-situ to Obtain More Accurate Soil Carbon Dioxide Effluxes Through the Gradient Method (141664)
Enrique P. Sanchez-Canete, University of Granada, Applied Physics, Granada, Spain, Russell L Scott, Agricultural Research Service Tucson, Tucson, AZ, United States, Joost L M Van Haren, University of Arizona, Biosphere 2, Tucson, United States; University of Arizona, Honors College, Tucson, AZ, United States and Greg Barron-Gafford, University of Arizona, School of Geography, Development & Environment, Tucson, AZ, United States
Role of Biotic and Abiotic Processes on Soil CO2 Dynamics in the McMurdo Dry Valleys, Antarctica (178318)
Chris M Macintyre1, David A Risk2, Charles Lee3, Craig Cary3, Fiona Shanhun4 and Peter C Almond4, (1)St. Francis Xavier University, Earth Sciences, Antigonish, NS, Canada, (2)St. Francis Xavier University, Antigonish, Canada, (3)University of Waikato, International Centre for Terrestrial Antarctic Research, Hamilton, New Zealand, (4)Lincoln University, Agriculture and Life Sciences, Lincoln, New Zealand
Methane fluxes at upland forests in Japan based on the micrometeorological and chamber methods (154239)
Masahito Ueyama1, Kota Yoshikawa1, Yoshiyuki Takahashi2, Kentaro Takagi3 and Yuji Kominami4, (1)Osaka Prefecture University, Sakai, Japan, (2)National Institute for Environmental Studies, Tsukuba, Japan, (3)Hokkaido University, Sapporo, Japan, (4)Forestry Res. Institute, Kyoto, Japan
Impacts of riparian wetlands on the seasonal variations of watershed-scale methane budget in a temperate monsoonal forest revealed by plot-scale and ecosystem-scale flux measurements (173056)
Ayaka Sakabe1, Yoshiko Kosugi2, Masayuki Itoh3 and Kenshi Takahashi1, (1)Kyoto University, Kyoto, Japan, (2)Kyoto University, Graduate School of Agriculture, Kyoto, Japan, (3)University of Hyogo, School of Human Science and Environment, Hyogo, Japan
Cycling of greenhouse gases as a function of groundwater level in a floodplain - carbon dioxide, nitrous oxide and methane: Implications for Biogeochemical Change in a Warming World (146799)
Markus Bill1, Mark E Conrad2, Tetsu K Tokunaga3, Chad Hobson4 and Kenneth Hurst Williams3, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Earth Science Divission, Berkeley, CA, United States
Low methane flux from a constructed boreal wetland (175104)
M. Graham Clark, Carleton University, Ottawa, ON, Canada, Elyn Humphreys, Carleton University, *Geography, Ottawa, ON, Canada and Sean Kevin Carey, McMaster University, School of Earth, Environment and Society, Hamilton, ON, Canada
Characterizing Gas Transport in Wetland Soil-Root Systems with Dissolved Gas Tracer Techniques (132449)
Matthew C Reid, Cornell University, Civil and Environmental Engineering, Ithaca, NY, United States and Peter R Jaffe, Princeton University, Princeton, NJ, United States
Nitrous oxide fluxes from tree stems in temperate forest ecosystems (147434)
Yuan Wen1, Marife D Corre1 and Edzo Veldkamp2, (1)University of Göttingen, Soil Science of Tropical and Subtropical Ecosystems, Göttingen, Germany, (2)Georg-August University of Göttingen, Soil Science of Tropical and Subtropical Ecosystems, Büsgen Institute, Göttingen, Germany
Methane (CH4) emissions from tree stems in boreal upland and drained peatland forest (186900)
Mari Pihlatie1, Iikka Haikarainen2, Elisa Halmeenmäki3, Petteri Pyykkö3, Jussi Heinonsalo4, Anuliina Putkinen3,4, Minna Santalahti4, Hannu Fritze5, Katerina Machacova6, Mika Korkiakoski7, Kari Minkkinen8, Paavo Ojanen5, Timo Penttilä5 and Annalea Lohila7, (1)University of Helsinki, Institute for Atmospheric and Earth System Research / Physics, Faculty of Science, Helsinki, Finland, (2)University of Helsinki, University of Helsinki, Department of Agricultural Science and Institute for Atmospheric and Earth System Research / Forest Sciences, Faculty of Agriculture and Forestry, Helsinki, Finland, (3)University of Helsinki, Department of Physics, Helsinki, Finland, (4)University of Helsinki, Department of Food and Environmental Sciences, Helsinki, Finland, (5)Natural Resources Institute Finland (Finnish Forest Research Institute), Vantaa, Finland, (6)Global Change Research Institute CAS, Department of Ecosystem Trace Gas Exchange, Brno, Czech Republic, (7)Finnish Meteorological Institute, Helsinki, Finland, (8)University of Helsinki, Department of Forest Sciences, Helsinki, Finland
Tropical rainforest methane consumption during the El Niño of 2015-16 (194499)
Emma L Aronson1, Diego Dierick2, Jon Botthoff3, Amanda Cantu Swanson4 and Michael F Allen4, (1)University of California Riverside, Department of Microbiology and Plant Pathology, Riverside, CA, United States, (2)Florida International University, Miami, FL, United States, (3)University of California Riverside, Center for Conservation Biology, Riverside, CA, United States, (4)University of California Riverside, Riverside, CA, United States

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