Nitrous oxide emissions from 2008 to 2012 for agricultural lands in the conterminous United States

Ogle, S. M.; Del Grosso, S. J.; Nevison, C.

Nitrous oxide emissions from 2008 to 2012 for agricultural lands in the conterminous United States

dc.contributor.author	Ogle, S. M.
dc.contributor.author	Del Grosso, S. J.
dc.contributor.author	Nevison, C.
dc.date.accessioned	2022-06-27T17:57:41Z
dc.date.available	2022-06-27T17:57:41Z
dc.date.issued	2022
dc.description	The soil N2O emissions data for the conterminous United States were generated by the DayCent ecosystem model using the crop and land-use histories for survey locations in the USDA-NRCS National Resources Inventory (NRI). The model also requires weather and soils data. Daily maximum/minimum temperature and precipitation data are based on gridded weather data from the PRISM Climate Data product. Soils data are obtained from Soil Survey Geographic Database (SSURGO). See Del Grosso et al. (2022) and US-EPA (2020) for more details about the simulations. Atmospheric inversions were conducted using the CarbonTracker Langrage framework (Nevison et al. 2018). These results provide total N2O fluxes for the domain using atmospheric observations and an inverse modeling, and are compared to the DayCent emissions to confirm seasonal patterns, particularly the role of freeze-thaw events in driving pulses of N2O emissions from agricultural lands.	en_US
dc.description	Department of Ecosystem Science and Sustainability
dc.description	Warner College of Natural Resources
dc.description	Natural Resource Ecology Laboratory (NREL)
dc.description.abstract	Nitrous oxide (N2O) is an important greenhouse gas (GHG) that also contributes to depletion of ozone in the stratosphere. Agricultural soils account for about 60% of anthropogenic N2O emissions. Most national GHG reporting to the UN Framework Convention on Climate Change assumes nitrogen (N) additions drive emissions during the growing season, but soil freezing and thawing during spring is also an important driver in cold climates. We show that both atmospheric inversions and newly implemented bottom-up modeling approaches exhibit large N2O pulses in the northcentral region of the United States during early spring and this increases annual N2O emissions from croplands and grasslands reported in the national GHG inventory by 11%. Considering this, emission accounting in cold climate regions is very likely under-estimated in most national reporting frameworks. Current commitments related to the Paris Agreement and COP 26 emphasize reductions of carbon compounds. Assuming these targets are met, the importance of accurately accounting and mitigating N2O increases once CO2 and CH4 are phased out. Hence, the N2O emission under-estimate introduces additional risks into meeting long term climate goals.	en_US
dc.description.sponsorship	US Forest Service 18-CR-11242305-109, US Department of Agriculture (USDA) UV-B Monitoring and Research Program, Colorado State University, under USDA National Institute of Food and Agriculture Grant 2016-34263-25763, and the USDA GHG and DayCent modeling NACA agreements (58-3012-9-012 and 58-3012-1-015).	en_US
dc.format.medium	ZIP
dc.format.medium	NetCDF
dc.format.medium	PDF
dc.identifier.uri	https://hdl.handle.net/10217/235393
dc.identifier.uri	http://dx.doi.org/10.25675/10217/235393
dc.language	English	en_US
dc.language.iso	eng	en_US
dc.publisher	Colorado State University. Libraries	en_US
dc.relation.ispartof	Research Data
dc.relation.isreferencedby	Del Grosso, S., S.M. Ogle, C. Nevison, R. Gurung, WJ. Parton, C. Wagner-Riddle, W. Smith, W. Winiwarter, B. Grante, M. Tenuta, E. Marx, S. Spencer, and S. Williams. 2022. A Gap in Nitrous Oxide Emissions Reporting Complicates Long Term Climate Mitigation. Proceedings of the National Academy of Sciences, 119(31), e2200354119. https://doi.org/10.1073/pnas.2200354119	en_US
dc.relation.isreferencedby	Nevison, C., Andrews, A., Thoning, K., Dlugokencky, E., Sweeney, C., Miller, S., Saikawa, E., Benmergui, J., Fischer, M., Mountain, M. and Nehrkorn, T. 2018. Nitrous Oxide Emissions Estimated with the CarbonTracker‐Lagrange North American Regional Inversion Framework. Global Biogeochemical Cycles, 32(3), pp.463-485.	en_US
dc.relation.isreferencedby	US-EPA (2020) Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2018. EPA 430-R-20-002, United States Environmental Protection Agency.	en_US
dc.rights.license	This material is open access and distributed under the terms and conditions of the Creative Commons CC BY-SA: Attribution-ShareAlike 4.0 International license (https://creativecommons.org/licenses/by-sa/4.0/).
dc.rights.uri	https://creativecommons.org/licenses/by-sa/4.0/
dc.subject	greenhouse gas emissions	en_US
dc.subject	soil nitrous oxide emissions	en_US
dc.subject	ecosystem modeling	en_US
dc.subject	atmospheric inversion	en_US
dc.subject	agriculture	en_US
dc.subject	DayCent	en_US
dc.subject	CarbonTracker	en_US
dc.title	Nitrous oxide emissions from 2008 to 2012 for agricultural lands in the conterminous United States	en_US
dc.type	Dataset	en_US