Articles | Volume 13, issue 7
Research article
29 Jul 2020
Research article |  | 29 Jul 2020

Capturing temporal heterogeneity in soil nitrous oxide fluxes with a robust and low-cost automated chamber apparatus

Nathaniel C. Lawrence and Steven J. Hall

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Cited articles

Akiyama, H., Tsuruta, H., and Watanabe, T.: N2O and NO emissions from soils after the application of different chemical fertilizers, Chemosphere, 2, 313–320,, 2000. 
Alves, B. J. R., Smith, K. A., Flores, R. A., Cardoso, A. S., Oliveira, W. R. D., Jantalia, C. P., Urquiaga, S., and Boddey, R. M.: Selection of the most suitable sampling time for static chambers for the estimation of daily mean N2O flux from soils, Soil Biol. Biochem., 46, 129–135,, 2012. 
Ambus, P. and Robertson, G. P.: Automated near-continuous measurement of carbon dioxide and nitrous oxide fluxes from soil, Soil Sci. Soc. Am. J., 62, 394–400,, 1998. 
Bai, M., Suter, H., Lam, S. K., Flesch, T. K., and Chen, D.: Comparison of slant open-path flux gradient and static closed chamber techniques to measure soil N2O emissions, Atmos. Meas. Tech., 12, 1095–1102,, 2019. 
Barton, L., Wolf, B., Rowlings, D., Scheer, C., Kiese, R., Grace, P., Stefanova, K., and Butterbach-Bahl, K.: Sampling frequency affects estimates of annual nitrous oxide fluxes, Scientific Reports, 5, 15912,, 2015. 
Short summary
Soil emissions of nitrous oxide (N2O), a potent greenhouse gas, are highly variable over space and time. Existing approaches for automated N2O emission measurements are costly and often incompatible with flooded soils. We describe and validate a robust and low-cost apparatus for replicated measurement of soil N2O emissions at subdaily resolution over large spatial gradients (> 100 m). High-frequency measurements are critical for constraining and mitigating the soil N2O source.