2026-09-21T10:17:10Zhttps://ecommons.cornell.edu/server/oai/requestoai:ecommons.cornell.edu:1813/389772026-05-14T13:55:41Zcom_1813_35col_1813_47
Mason, Cedric
Steenhuis, Tammo S
Richards, Brian K
2015-01-07T20:58:47Z
2015-01-07T20:58:47Z
2014-08-18
https://hdl.handle.net/1813/38977
8793283
In temperate climates, a significant fraction of annual emissions of nitrous oxide (N2O) from agricultural land occurs during soil thaw. The objective of this study is to determine the impact of conversion of long-term fallow grassland to perennial grass bioenergy crops on N2O emissions during spring-thaw, and to identify field-scale features that influence emissions. We measured mid-afternoon fluxes daily from March 27th to April 7th 2013 from fallow and reed canarygrass over a short topological gradient using static chambers. Soil temperature, volumetric water content, and above-ground biomass were also observed, as were hourly air temperature and precipitation. Hot-moment analysis, non-parametric statistics and modeling results show that in the reed canarygrass, the topologically low subplots exhibited significantly elevated emissions compared to the fallow. Our results suggest that conversion of fallow grassland to perennial grass cropping systems for bioenergy or other uses could increase spring-thaw N2O emissions in wetness prone areas.
en_US
Nitrous oxide
Reed Canarygrass
Bioenergy
Spring-Thaw Nitrous Oxide Emissions From Reed Canarygrass On Wet Marginal Soil In New York State
dissertation or thesis
application/pdf
Agricultural and Biological Engineering
Cornell University
Master of Science
M.S., Agricultural and Biological Engineering
Publication
Cornell Theses and Dissertations
Mason, Cedric
5893a6ea-7af3-41d7-abc6-04bcd26ab5df
open.access
open.access
<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="0ef92887-e73d-4b1c-91d4-06b8e6ccba2d">
<Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type>
<Language>en_US</Language>
<Title>Spring-Thaw Nitrous Oxide Emissions From Reed Canarygrass On Wet Marginal Soil In New York State</Title>
<PublishedIn>
<Publication>
</Publication>
</PublishedIn>
<PublicationDate>2014-08-18</PublicationDate>
<Authors>
<Author>
<DisplayName>Mason, Cedric</DisplayName>
<Affiliation>
<OrgUnit>
</OrgUnit>
</Affiliation>
</Author>
</Authors>
<Editors>
</Editors>
<Publishers>
<Publisher>
<OrgUnit />
</Publisher>
</Publishers>
<Keyword>Nitrous oxide</Keyword>
<Keyword>Reed Canarygrass</Keyword>
<Keyword>Bioenergy</Keyword>
<Abstract>In temperate climates, a significant fraction of annual emissions of nitrous oxide (N2O) from agricultural land occurs during soil thaw. The objective of this study is to determine the impact of conversion of long-term fallow grassland to perennial grass bioenergy crops on N2O emissions during spring-thaw, and to identify field-scale features that influence emissions. We measured mid-afternoon fluxes daily from March 27th to April 7th 2013 from fallow and reed canarygrass over a short topological gradient using static chambers. Soil temperature, volumetric water content, and above-ground biomass were also observed, as were hourly air temperature and precipitation. Hot-moment analysis, non-parametric statistics and modeling results show that in the reed canarygrass, the topologically low subplots exhibited significantly elevated emissions compared to the fallow. Our results suggest that conversion of fallow grassland to perennial grass cropping systems for bioenergy or other uses could increase spring-thaw N2O emissions in wetness prone areas.</Abstract>
<Access xmlns="http://purl.org/coar/access_right"
>
</Access>
</Publication>