Articles | Volume 23, issue 9
https://doi.org/10.5194/hess-23-3503-2019
https://doi.org/10.5194/hess-23-3503-2019
Research article
 | 
02 Sep 2019
Research article |  | 02 Sep 2019

Trajectories of nitrate input and output in three nested catchments along a land use gradient

Sophie Ehrhardt, Rohini Kumar, Jan H. Fleckenstein, Sabine Attinger, and Andreas Musolff

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Cited articles

Abbott, B. W., Moatar, F., Gauthier, O., Fovet, O., Antoine, V., and Ragueneau, O.: Trends and seasonality of river nutrients in agricultural catchments: 18 years of weekly citizen science in France, Sci. Total Environ., 624, 845–858, https://doi.org/10.1016/j.scitotenv.2017.12.176, 2018. 
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Bach, M., Godlinski, F., and Greef, J.-M.: Handbuch Berechnung der Stickstoff-Bilanz für die Landwirtschaft in Deutschland Jahre 1990–2008, in: Berichte aus dem Julius Kühn-Institut 159, edited by: Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, 36, Braunschweig, Germany, 2011. 
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Short summary
This study shows quantitative and temporal offsets between nitrogen input and riverine output, using time series of three nested catchments in central Germany. The riverine concentrations show lagged reactions to the input, but at the same time exhibit strong inter-annual changes in the relationship between riverine discharge and concentration. The study found a strong retention of nitrogen that is dominantly assigned to a hydrological N legacy, which will affect future stream concentrations.
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