Nitrate sinks and sources as controls of spatio-temporal water quality dynamics in an agricultural headwater catchment

Schuetz, Tobias; Gascuel-Odoux, Chantal; Durand, Patrick; Weiler, Markus

doi:10.5194/hess-20-843-2016

Articles | Volume 20, issue 2

https://doi.org/10.5194/hess-20-843-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/hess-20-843-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 20, issue 2

Research article

|

23 Feb 2016

Research article |

| 23 Feb 2016

Nitrate sinks and sources as controls of spatio-temporal water quality dynamics in an agricultural headwater catchment

Tobias Schuetz, Chantal Gascuel-Odoux, Patrick Durand, and Markus Weiler

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Latest update: 21 Dec 2025

Short summary

We quantify the spatio-temporal impact of distinct nitrate sinks and sources on stream network nitrate dynamics in an agricultural headwater. By applying a data-driven modelling approach, we are able to fully distinguish between mixing and dilution processes, and biogeochemical in-stream removal processes along the stream network. In-stream nitrate removal is estimated by applying a novel transfer coefficient based on energy availability.