Global Research Alliance N2O chamber methodology guidelines: considerations for automated flux measurement

Grace, Peter R.; van der Weerden, Tony J.; Rowlings, David W.; Scheer, Clemens; Brunk, Christian; Kiese, Ralf; Butterbach‐Bahl, Klaus; Rees, Robert M.; Robertson, G. Philip; Skiba, Ute M. ORCID: 2020 Global Research Alliance N2O chamber methodology guidelines: considerations for automated flux measurement. Journal of Environmental Quality, 49 (5). 1126-1140.

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Nitrous oxide (N2O) emissions are highly episodic in response to nitrogen additions and changes in soil moisture. Automated gas sampling provides the necessary high temporal frequency to capture these emission events in real time, ensuring the development of accurate N2O inventories and effective mitigation strategies to reduce global warming. This paper outlines the design and operational considerations of automated chamber systems including chamber design and deployment, frequency of gas sampling, and options in terms of the analysis of gas samples. The basic hardware and software requirements for automated chambers are described, including the major challenges and obstacles in their implementation and operation in a wide range of environments. Detailed descriptions are provided of automated systems that have been deployed to assess the impacts of agronomy on the emissions of N2O and other significant greenhouse gases. This information will assist researchers across the world in the successful deployment and operation of automated N2O chamber systems.

Item Type: Publication - Article
Digital Object Identifier (DOI):
UKCEH and CEH Sections/Science Areas: Atmospheric Chemistry and Effects (Science Area 2017-)
ISSN: 0047-2425
Additional Information. Not used in RCUK Gateway to Research.: Open Access paper - full text available via Official URL link.
NORA Subject Terms: Agriculture and Soil Science
Date made live: 09 Oct 2020 16:05 +0 (UTC)

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