EGU21-8314
https://doi.org/10.5194/egusphere-egu21-8314
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

The interplay between hydrological flushing and biogeochemical cycling in a 3rd order stream

Magdalena Bieroza1 and Ann Louise Heathwaite2
Magdalena Bieroza and Ann Louise Heathwaite
  • 1Swedish University of Agricultural Sciences, Soil and Environment, Uppsala, Sweden (magdalena.bieroza@slu.se)
  • 2Lancaster Environment Centre, Lancaster University, LA1 4YQ Lancaster, UK

High-resolution water quality data obtained with in situ sensors and analysers coupled to flow discharge records can reveal critical information on hydrochemical and biogeochemical functioning of aquatic ecosystems. In this study we explore a rich high-resolution hydrochemical dataset to synthesise the impact of hydrological flushing and biogeochemical cycling on water quality in a 3rd order groundwater-fed stream draining an agricultural catchment dominated by grassland.Our results show that despite large storm to storm diversity in hydrochemical responses, storm event magnitude and timing have a critical role in controlling the type of mobilisation, flushing and cycling behaviour. These results can be used to evaluate pollution risks in streams and their effects on freshwater quality.

How to cite: Bieroza, M. and Heathwaite, A. L.: The interplay between hydrological flushing and biogeochemical cycling in a 3rd order stream, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-8314, https://doi.org/10.5194/egusphere-egu21-8314, 2021.

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