Comparison of Measured and EF5-r-Derived N sub(2)O Fluxes from a Spring-Fed River

Comparison of measured and EF5-r-derived N sub(2)O fluxes from a spring-fed river was discussed. The objectives were to measure the N sub(2)O fluxes from a spring-fed river, relate these fluxes to the dissolved N sub(2)O concentrations and NO sub(3)-N loading of the river, and to try and define the...

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Bibliographic Details
Published in:Global change biology 2006-03, Vol.12 (3), p.477-477
Main Authors: Clough, Tim J, Bertram, Janet E, Sherlock, Robert R, Leonard, Robert L, Nowicki, Barbara L
Format: Article
Language:English
Subjects:
Freshwater
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Summary:Comparison of measured and EF5-r-derived N sub(2)O fluxes from a spring-fed river was discussed. The objectives were to measure the N sub(2)O fluxes from a spring-fed river, relate these fluxes to the dissolved N sub(2)O concentrations and NO sub(3)-N loading of the river, and to try and define the indirect emission factor for the river. Gas bubble ebullition was observed at the river source with bubbles containing 7.9 mu L N sub(2)O L super(-1). The measured N sub(2)O-N fluxes equated to an EF5-r of only 6.6% of that calculated using the Intergovernmental Panel on Climate Change (IPCC) methodology, and this was considered to be an overestimate because of the degassing of antecedent dissolved N sub(2)O present in the groundwater that fed the river.
ISSN:1354-1013
1365-2486
DOI:10.1111/j.1365-2486.2005.01092.x