Articles | Volume 6, issue 1
SOIL, 6, 145–152, 2020
https://doi.org/10.5194/soil-6-145-2020
SOIL, 6, 145–152, 2020
https://doi.org/10.5194/soil-6-145-2020

Short communication 08 Apr 2020

Short communication | 08 Apr 2020

The 15N gas-flux method to determine N2 flux: a comparison of different tracer addition approaches

Dominika Lewicka-Szczebak and Reinhard Well

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Revision (24 Feb 2020) by Karsten Kalbitz
AR by Lorena Grabowski on behalf of the Authors (03 Mar 2020)  Author's response
ED: Publish subject to technical corrections (15 Mar 2020) by Karsten Kalbitz
ED: Publish subject to technical corrections (16 Mar 2020) by Johan Six(Executive Editor)
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Short summary
This study aimed at comparison of various experimental strategies for incubating soil samples to determine the N2 flux. Such experiments require addition of isotope tracer, i.e. nitrogen fertilizer enriched in heavy nitrogen isotopes (15N). Here we compared the impact of soil homogenization and mixing with the tracer and tracer injection to the intact soil cores. The results are well comparable: both techniques would provide similar conclusions on the magnitude of N2 flux.