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| Titel |
Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium |
| VerfasserIn |
J. Rozemeijer, C. Siderius, M. Verheul, H. Pomarius |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 8 ; Nr. 16, no. 8 (2012-08-02), S.2405-2415 |
| Datensatznummer |
250013402
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| Publikation (Nr.) |
 copernicus.org/hess-16-2405-2012.pdf |
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| Zusammenfassung |
| Diverting river water into agricultural areas or nature reserves is a
frequently applied management strategy to prevent fresh water shortage.
However, the river water might have negative consequences for chemical and
ecological water quality in the receiving water bodies. This study aimed to
obtain a spatial image of the diverted river water propagation into a
hydrologically complex polder area, the polder Quarles van Ufford in The
Netherlands. We used anthropogenic gadolinium (Gd-anomaly) as a tracer for
river water that was diverted into the polder. A clear reduction in the
river water contribution was found between very dry conditions on 5 August
2010 and very wet conditions on 22 October. Despite the large river water
impact on 5 August, the diverted river water did not propagate up into the
small agricultural headwater ditches. Gadolinium proved to be an effective
tracer for diverted river water in a polder system. We applied our results
to upgrade the interpretation of water quality monitoring data and to
validate an integrated nutrient transport model. |
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