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Impacts of atmospheric anthropogenic nitrogen on the open ocean

Duce, RA and LaRoche, J and Altieri, K and Arrigo, KR and Baker, AR and Capone, DG and Cornell, S and Dentener, F and Galloway, J and Ganeshram, RS and Geider, RJ and Jickells, T and Kuypers, MM and Langlois, R and Liss, PS and Liu, SM and Middelburg, JJ and Moore, CM and Nickovic, S and Oschlies, A and Pedersen, T and Prospero, J and Schlitzer, R and Seitzinger, S and Sorensen, LL and Uematsu, M and Ulloa, O and Voss, M and Ward, B and Zamora, L (2008) 'Impacts of atmospheric anthropogenic nitrogen on the open ocean.' Science, 320 (5878). 893 - 897. ISSN 0036-8075

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Abstract

Increasing quantities of atmospheric anthropogenic fixed nitrogen entering the open ocean could account for up to about a third of the ocean's external (nonrecycled) nitrogen supply and up to ∼3% of the annual new marine biological production, ∼0.3 petagram of carbon per year. This input could account for the production of up to ∼1.6 teragrams of nitrous oxide (N 2 O) per year. Although ∼10% of the ocean's drawdown of atmospheric anthropogenic carbon dioxide may result from this atmospheric nitrogen fertilization, leading to a decrease in radiative forcing, up to about two-thirds of this amount may be offset by the increase in N 2 O emissions. The effects of increasing atmospheric nitrogen deposition are expected to continue to grow in the future.

Item Type: Article
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science and Health > Biological Sciences, School of
Depositing User: Richard Geider
Date Deposited: 04 Aug 2011 10:18
Last Modified: 14 May 2019 23:15
URI: http://repository.essex.ac.uk/id/eprint/336

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