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Production, isotopic composition, and atmospheric fate of biologically produced nitrous oxide

Stein, Lisa Y. and Yung, ­Yuk L. (2003) Production, isotopic composition, and atmospheric fate of biologically produced nitrous oxide. Annual Review of Earth and Planetary Sciences, 31 . pp. 329-356. ISSN 0084-6597. http://resolver.caltech.edu/CaltechAUTHORS:STEareps03

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Abstract

The anthropogenic production of greenhouse gases and their consequent effects on global climate have garnered international attention for years. A remaining challenge facing scientists is to unambiguously quantify both sources and sinks of targeted gases. Microbiological metabolism accounts for the largest source of nitrous oxide (N2O), mostly due to global conversion of land for agriculture and massive usage of nitrogen-based fertilizers. A most powerful method for characterizing the sources of N2O lies in its multi-isotope signature. This review summarizes mechanisms that lead to biological N2O production and how discriminate placement of 15N into molecules of N2O occurs. Through direct measurements and atmospheric modeling, we can now place a constraint on the isotopic composition of biological sources of N2O and trace its fate in the atmosphere. This powerful interdisciplinary combination of biology and atmospheric chemistry is rapidly advancing the closure of the global N2O budget.


Item Type:Article
Additional Information:"Reprinted, with permission, from the Annual Review of Earth and Planetary Sciences, Volume 31 copyright 2003 by Annual Reviews, www.annualreviews.org" First Published online as a Review in Advance on January 8, 2003. We thank J. Tung, K. Campbell, H.J. Chiang, and F.L. Jordan for helpful comments. This work was supported in part by an NSF grant and a grant from the Davidow Foundation.
Subject Keywords:microorganisms; isotopic discrimination; photolysis; greenhouse gas; global budget
Record Number:CaltechAUTHORS:STEareps03
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:STEareps03
Alternative URL:http://dx.doi.org/10.1146/annurev.earth.31.110502.080901
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3887
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Jul 2006
Last Modified:26 Dec 2012 08:56

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