Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1029/2022GL100278 |
Licence  |
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| Title (Primary) | Toward understanding of long-term nitrogen transport and retention dynamics across German catchments |
| Author | Nguyen, V.T.
; Sarrazin, F.J.; Ebeling, P.; Musolff, A.; Fleckenstein, J.H.; Kumar, R.
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| Source Titel | Geophysical Research Letters |
| Year | 2022 |
| Department | CHS; HDG |
| Volume | 49 |
| Issue | 24 |
| Page From | e2022GL100278 |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Data and Software links | https://doi.org/10.4211/hs.0ec5f43e43c349ff818a8d57699c0fe1 https://doi.org/10.5281/zenodo.6788552 |
| Supplements | https://agupubs.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1029%2F2022GL100278&file=2022GL100278-sup-0001-Supporting+Information+SI-S01.pdf |
| Keywords | nitrogen legacies; large-sample assessment; nitrogen transport and retention |
| Abstract | Long-term nitrogen (N) transport and retention dynamics across catchments are not well understood. Using a process-based model for 89 German catchments, results across study catchments reveal that most N surplus (during 1950–2014) was removed by denitrification (mean ± standard deviation: 58 ± 15%) while the remaining fraction was mostly stored in the soil (14% ± 11%). The mean groundwater transit times in these catchments varied from 3.2 to 20.3 years. These results indicate that past N inputs could continue to affect surface and groundwater quality in the coming years. We identified four catchment groups with distinct archetypal N transport and retention dynamics, which are linked to the catchments' climate, topographic, and geological conditions. Overall, our results shed light on long-term N dynamics in German catchments and how they are linked to catchment characteristics, emphasizing the role of long-term N accumulation and transport for water quality management and evaluation programs. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26908 |
| Nguyen, V.T., Sarrazin, F.J., Ebeling, P., Musolff, A., Fleckenstein, J.H., Kumar, R. (2022): Toward understanding of long-term nitrogen transport and retention dynamics across German catchments Geophys. Res. Lett. 49 (24), e2022GL100278 10.1029/2022GL100278 |
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