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Article

Phosphorus Transport in a Lowland Stream Derived from a Tracer Test with 32P

Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Federico Cervi
Water 2021, 13(8), 1030; https://doi.org/10.3390/w13081030
Received: 19 February 2021 / Revised: 22 March 2021 / Accepted: 30 March 2021 / Published: 9 April 2021
Small streams in urbanized rural areas receive loads of P from various, often episodic, sources. This paper addresses, through a tracer test with 32P, retention and transport of a pulse input of phosphorus in a 2.6 km long stretch of a channelized second-order lowland stream. Tritiated water was introduced alongside the 32P-labelled ortophosphate in order to isolate the influence of the hydrodynamic factors on P behavior. Tracer concentrations in unfiltered water samples were measured by liquid scintillation counting. Four in-stream and five hyporheic breakthrough curves were collected at four points along the stream, two of which encompass a beaver dam impoundment. The overall retention efficiency of 32P along the studied reach was 46%. The transient storage transport model OTIS-P provided reasonable fits for in-stream breakthrough curves (BTCs) but failed at reproducing the hyporheic BTCs. The overall small effect of transient storage on solute transport was higher in the stretch with a more pronounced surface storage. Transient storage and phosphorus retention were not enhanced in the beaver dam impoundment. View Full-Text
Keywords: phosphorus; stream; transient storage; hyporheic zone; tracer test; 32P; tritium; beaver dam; OTIS phosphorus; stream; transient storage; hyporheic zone; tracer test; 32P; tritium; beaver dam; OTIS
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MDPI and ACS Style

Zięba, D.; Wachniew, P. Phosphorus Transport in a Lowland Stream Derived from a Tracer Test with 32P. Water 2021, 13, 1030. https://doi.org/10.3390/w13081030

AMA Style

Zięba D, Wachniew P. Phosphorus Transport in a Lowland Stream Derived from a Tracer Test with 32P. Water. 2021; 13(8):1030. https://doi.org/10.3390/w13081030

Chicago/Turabian Style

Zięba, Damian; Wachniew, Przemysław. 2021. "Phosphorus Transport in a Lowland Stream Derived from a Tracer Test with 32P" Water 13, no. 8: 1030. https://doi.org/10.3390/w13081030

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