Articles | Volume 15, issue 20
Biogeosciences, 15, 6127–6138, 2018
https://doi.org/10.5194/bg-15-6127-2018
Biogeosciences, 15, 6127–6138, 2018
https://doi.org/10.5194/bg-15-6127-2018
Research article
18 Oct 2018
Research article | 18 Oct 2018

Nitrogen and oxygen availabilities control water column nitrous oxide production during seasonal anoxia in the Chesapeake Bay

Qixing Ji et al.

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Cited articles

Anderson, J. H.: The metabolism of hydroxylamine to nitrite by Nitrosomonas, Biochem. J., 91, 8–17, 1964. 
Arp, D. J. and Stein, L. Y.: Metabolism of inorganic N compounds by ammonia-oxidizing bacteria, Crit. Rev. Biochem. Mol., 38, 471–495, https://doi.org/10.1080/10409230390267446, 2003. 
Baird, D., Ulanowicz, R. E., and Boynton, W. R.: Seasonal Nitrogen Dynamics in Chesapeake Bay: a Network Approach, Estuar. Coast. Shelf S., 41, 137–162, https://doi.org/10.1006/ecss.1995.0058, 1995. 
Boesch, D. F., Brinsfield, R. B., and Magnien, R. E.: Chesapeake Bay Eutrophication, J. Environ. Qual., 30, 303–320, https://doi.org/10.2134/jeq2001.302303x, 2001. 
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Nitrous oxide (N2O) is a strong greenhouse gas and ozone-depletion agent. Intense N2O effluxes had been observed from nutrient-rich estuaries with human impacts, such as the Chesapeake Bay. We report that increased nitrogen availability and low-oxygen conditions stimulate N2O production. Thus, controlling the nutrient input to the bay will decrease nitrogen availability and alleviate eutrophication, leading to water column reoxygenation, and subsequently will mitigate N2O emission.
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