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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 2O) 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 N2O 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 > Life Sciences, School of
Depositing User: Richard Geider
Date Deposited: 04 Aug 2011 10:18
Last Modified: 03 Sep 2019 23:15
URI: http://repository.essex.ac.uk/id/eprint/336

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