B34A:
Can We Differentiate the Effects of Climate and Management Practices on Nitrous Oxide Emissions From Agricultural Land? II Posters

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Session Title - en français: Peut-on Différencier les Effets des Pratiques Culturales de Ceux du Climat sur les Émissions d'Oxyde Nitreux d'Origine Agricole?

Session ID#: 5985

Session Description:
Some management practices have been shown to mitigate nitrous oxide emissions (N2O) from agricultural land while maintaining the productivity. However, their impact on N2O emission reduction varies greatly across climatic regions, soil types and even according to climatic sequences for a given location. In some cases not enough measurements are available to capture the spatial heterogeneity and episodic nature of N2O fluxes to arrive at any concrete conclusion. In this session, we will discuss options for using measurements and tools, such as empirical and process-based models, for discerning the effects that management practices have on N2O emissions and how they are modulated by climate sequences for given soil properties. A discussion group at the end of the session will be formed to summarise the management options that can reliably predict changes in N2O emissions, and the most important gaps in data and analyses regarding management effects on N2O emissions.
OSPA Liaison:  Andrew VanderZaag, Agriculture and Agri-Food Canada, Science and Technology Branch, Ottawa, ON, Canada
Chairs:  Andrew VanderZaag, Agriculture and Agri-Food Canada, Science and Technology Branch, Ottawa, ON, Canada and Mario Tenuta, University of Manitoba, Department of Soil Science, Winnipeg, MB, Canada
Primary Convener:  Elizabeth Pattey, Agriculture and Agri-Food Canada, Science and Technology Branch, Ottawa, ON, Canada
Convener:  Eric A Davidson, University of Maryland Center (UMCES) for Environmental Science, Frostburg, United States
Index Terms:

0402 Agricultural systems [BIOGEOSCIENCES]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0452 Instruments and techniques [BIOGEOSCIENCES]
0469 Nitrogen cycling [BIOGEOSCIENCES]
Co-Sponsor(s):
  • AS - Atmospheric Sciences

Abstracts Submitted to this Session:

 
B34A-0048
Nitrous Oxide Emissions from Irrigated Cotton in the Southwest USA: Assessment and Mitigation Strategies. (34271)
Kevin F Bronson1, Jarai Mon1, Douglas Hunsaker1 and Steve DelGrosso2, (1)USDA Agricultural Research Service, US Arid Land Agric Res Center, Maricopa, AZ, United States, (2)USDA-ARS Soil Plant Nutrient Research, Fort Collins, CO, United States
 
B34A-0049
Nitrous Oxide Emissions from Cropland Soils with Different Management Regimes in Manitoba, Canada (35609)
Aaron J Glenn, Amal Roy, Alan Moulin and Henry F Wilson, Agriculture and Agri-Food Canada, Brandon, MB, Canada
 
B34A-0050
N2O emissions and N-Leaching from Spring and Fall Applications of Digestate, Raw Dairy Manure and Urea (33617)
Emily Ann Schwager1, Andrew VanderZaag2, Claudia Wagner-Riddle3, Anna Crolla4, Christopher William Kinsley4 and Edward Gregorich5, (1)University of Guelph, Guelph, ON, Canada, (2)Agriculture and Agri-Food Canada, Science and Technology Branch, Ottawa, ON, Canada, (3)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada, (4)Campus d'Alfred, University of Guelph, Alfred, ON, Canada, (5)Agriculture and Agri-Food Canada, Ottawa, ON, Canada
 
B34A-0051
Low but variable nitrous oxide emissions from rapeseed: Results from a two-year field experiment at five sites in Germany (34782)
Monique Andres1, Hannes Hegewald2, Katharina Kesenheimer3, Sarah Köbke4, Thomas Räbiger5, Teresa Suarez6, Roland Fuss7 and Ulrike Hagemann1, (1)Leibniz Centre for Agricultural Landscape Research (ZALF) e.V., Institute of Landscape Biogeochemistry, Müncheberg, Germany, (2)Martin-Luther-University Halle-Wittenberg, Institute of Agricultural and Nutritional Science, Halle-Wittenberg, Germany, (3)University of Hohenheim, Institute of Crop Science, Hohenheim, Germany, (4)University of Göttingen, Department for Crop Sciences, Göttingen, Germany, (5)Christian-Albrechts-University Kiel, Institute of Crop Science and Plant Breeding, Kiel, Germany, (6)Leibniz Centre for Agricultural Engineering Potsdam-Bornim, Department of Technology Assessment and Substance Cycles, Potsdam-Bornim, Germany, (7)Johann Heinrich von Thünen Institute, Institute of Climate-Smart Agriculture, Braunschweig, Germany
 
B34A-0052
Effectiveness of 4R Mitigation Practices to Reduce N2O Emissions of Corn Production Systems: A Modelling Approach (34390)
Diego Abalos1, Lianhai Wu2, Anna Chemeris1 and Claudia Wagner-Riddle3, (1)University of Guelph, Guelph, ON, Canada, (2)Rothamsted Research, North Wyke, United Kingdom, (3)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
 
B34A-0053
Evaluating random error in long-term, multi-plot flux-gradient measurements of N2O emissions (35617)
Shannon Elizabeth Brown1, Claudia Wagner-Riddle1 and Mingshu Sun2, (1)University of Guelph, School of Environmental Sciences, Guelph, ON, Canada, (2)University of Guelph, Guelph, ON, Canada
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