2020
DOI: 10.1002/agg2.20119
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Methane flux measurements in rice by static flux chamber and eddy covariance

Abstract: Understanding methane (CH4) fluxes from rice (Oryza sativa L.) at the field scale is paramount to reducing environmental impacts while ensuring global food security. Greenhouse gas (GHG) measurements at the plot scale using static flux chambers (SFC) have long informed the understanding of flux dynamics and have largely been the basis of global flux estimates. However, in many parts of the world, the landscapes where agricultural fluxes are generated come from larger fields. Eddy covariance (EC) can measure tr… Show more

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Cited by 6 publications
(1 citation statement)
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“…The only published data on AWD from a production farm in Arkansas was measured with the eddy-covariance (EC) method (Runkle et al, 2019) as opposed to chamber-based studies for the majority of CH 4 flux measurements in rice in the United States (Linquist et al, 2018). Though chambers and EC data show similar seasonal trends of CH 4 , the seasonal CH 4 fluxes have been reported to be higher from the chamber than the EC method (Chaichana et al, 2018;Reba et al, 2020). Additionally, Runkle et al (2019) did not measure the impact of AWD on N 2 O emissions, which may be enhanced by stimulation of the nitrification and subsequent denitrification processes (Buresh et al, 2008;Klemedtsson et al, 1988).…”
Section: Core Ideasmentioning
confidence: 99%
“…The only published data on AWD from a production farm in Arkansas was measured with the eddy-covariance (EC) method (Runkle et al, 2019) as opposed to chamber-based studies for the majority of CH 4 flux measurements in rice in the United States (Linquist et al, 2018). Though chambers and EC data show similar seasonal trends of CH 4 , the seasonal CH 4 fluxes have been reported to be higher from the chamber than the EC method (Chaichana et al, 2018;Reba et al, 2020). Additionally, Runkle et al (2019) did not measure the impact of AWD on N 2 O emissions, which may be enhanced by stimulation of the nitrification and subsequent denitrification processes (Buresh et al, 2008;Klemedtsson et al, 1988).…”
Section: Core Ideasmentioning
confidence: 99%