Hydrologic regimes drive nitrate export behavior  in human-impacted watersheds

Gorski, Galen; Zimmer, Margaret A.

doi:https://doi.org/10.5194/hess-25-1333-2021

Articles | Volume 25, issue 3

https://doi.org/10.5194/hess-25-1333-2021

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

https://doi.org/10.5194/hess-25-1333-2021

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

Articles | Volume 25, issue 3

Research article

|

18 Mar 2021

Research article |

| 18 Mar 2021

Hydrologic regimes drive nitrate export behavior in human-impacted watersheds

Galen Gorski and Margaret A. Zimmer

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Final revised paper (published on 18 Mar 2021)
Supplement to the final revised paper
Preprint (discussion started on 05 Nov 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Good examination of nitrate c-Q dynamics in a nested basin.', Anonymous Referee #1, 10 Dec 2020
- AC1: 'Reply on RC1', Galen Gorski, 20 Jan 2021
RC2: 'RC2: Artificial drainage affects nitrate c-Q patterns across five agricultural watersheds in Iowa, USA', Douglas Burns, 26 Dec 2020
- AC2: 'Reply on RC2', Galen Gorski, 20 Jan 2021

Peer-review completion

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

ED: Publish subject to minor revisions (further review by editor) (03 Feb 2021) by Genevieve Ali

AR by Galen Gorski on behalf of the Authors (08 Feb 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (17 Feb 2021) by Genevieve Ali

AR by Galen Gorski on behalf of the Authors (18 Feb 2021)

Short summary

Understanding when, where, and how nitrate is exported from watersheds is the key to addressing the challenges that excess nutrients pose. We analyzed daily nitrate and streamflow data for five nested, agricultural watersheds that export high levels of nitrate over a 4-year time period. Nutrient export patterns varied seasonally during baseflow but were stationary during stormflow. Additionally, anthropogenic and geologic factors drove nutrient export during both baseflow and stormflow.