Articles | Volume 12, issue 22
Biogeosciences, 12, 6823–6836, 2015
https://doi.org/10.5194/bg-12-6823-2015
Biogeosciences, 12, 6823–6836, 2015
https://doi.org/10.5194/bg-12-6823-2015

Research article 30 Nov 2015

Research article | 30 Nov 2015

Photomineralization and photomethanification of dissolved organic matter in Saguenay River surface water

Y. Zhang and H. Xie

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Cited articles

Aarnos, H., Ylöstalo, P., and Vähätalo, A. V.: Seasonal phototransformation of dissolved organic matter to ammonium, dissolved inorganic carbon, and labile substrates supporting bacterial biomass across the Baltic Sea, J. Geophys. Res., 117, G01004, https://doi.org/10.1029/2010JG001633, 2012.
Alldredge, A. L. and Cohen, Y.: Can microscale chemical patches persist in the sea - microelectrode study of marine snow, fecal pellets, Science, 235, 689–691, 1987.
Anesio, A. M. and Granéli, W.: Increased photoreactiviey of DOC by acidification: Implications for the carbon cycle in humic lakes, Limnol. Oceanogr., 48, 735–744, 2003.
Arsene, C., Barnes, I., Becker, K. H., and Mocanu, R.: FT-IR product study on the photo-oxidation of dimethyl sulphide in the presence of NOx–temperature dependence, Atmos. Environ., 35, 3769–3780, https://doi.org/10.1016/S1352-2310(01)00168-6, 2001.
Arthur, N. L. and Lee, M. S.: Reactions of methyl radicals. 1. Hydrogen abstraction from dimethyl sulfide, Aust. J. Chem., 29, 1483–1492, 1976.
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Sunlight-initiated photochemistry plays an important role in carbon and trace gases cycling in natural waters. We for the first time confirm that photochemical degradation of dissolved organic carbon (DOC) can produce methane, which is the second most important greenhouse gas in the atmosphere. Dissolved oxygen greatly affects the rates of DOC photodegradation and methane photoproduction. The implications of methane photoproduction for methane cycling in modern and ancient oceans are discussed.
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