Seasonality of nitrogen sources, cycling, and loading in a New England river discerned from nitrate isotope ratios

Rollinson, Veronica R.; Granger, Julie; Clark, Sydney C.; Blanusa, Mackenzie L.; Koerting, Claudia P.; Vaudrey, Jamie M. P.; Treibergs, Lija A.; Westbrook, Holly C.; Matassa, Catherine M.; Hastings, Meredith G.; Tobias, Craig R.

doi:https://doi.org/10.5194/bg-18-3421-2021

Articles | Volume 18, issue 11

https://doi.org/10.5194/bg-18-3421-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-18-3421-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 11

Research article

|

10 Jun 2021

Research article |

| 10 Jun 2021

Seasonality of nitrogen sources, cycling, and loading in a New England river discerned from nitrate isotope ratios

Veronica R. Rollinson, Julie Granger, Sydney C. Clark, Mackenzie L. Blanusa, Claudia P. Koerting, Jamie M. P. Vaudrey, Lija A. Treibergs, Holly C. Westbrook, Catherine M. Matassa, Meredith G. Hastings, and Craig R. Tobias

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Final revised paper (published on 10 Jun 2021)
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Preprint (discussion started on 04 Nov 2020)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of Rollinson et al.', Anonymous Referee #1, 13 Nov 2020
- AC1: 'Reply on RC1', Veronica Rollinson, 22 Jan 2021
RC2: 'Review „ Sources and cycling of nitrogen in a New England river discerned from nitrate isotope ratios”', Anonymous Referee #2, 23 Dec 2020
- AC2: 'Reply on RC2', Veronica Rollinson, 22 Jan 2021

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (27 Jan 2021) by Jack Middelburg

AR by Veronica Rollinson on behalf of the Authors (10 Feb 2021) Author's response Author's tracked changes Manuscript

ED: Publish subject to technical corrections (11 Feb 2021) by Jack Middelburg

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Short summary

We measured nutrients and the naturally occurring nitrogen (N) and oxygen (O) stable isotope ratios of nitrate discharged from a New England river over an annual cycle, to monitor N loading and identify dominant sources from the watershed. We uncovered a seasonality to loading and sources of N from the watershed. Seasonality in the nitrate isotope ratios also informed on N cycling, conforming to theoretical expectations of riverine nutrient cycling.