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Likely controls on dissolved reactive phosphorus concentrations in baseflow of an agricultural stream.

journal contribution
posted on 2024-06-21, 03:50 authored by Rich McDowellRich McDowell, Craig Depree, Roland Stenger
High baseflow phosphorus (P) concentrations increase the likelihood of periphyton blooms. Several physical and chemical factors can control baseflow P concentrations such as hydraulic exchange with groundwater, particle size-sorting, redox chemistry and different sediment sources. We hypothesized that of these sources, anoxic sediments would allow P-rich groundwater to influence baseflow P concentrations the most and that the measurement of the equilibrium P concentration (EPC0) of sediments under oxic conditions would not predict P release in anaerobic sediment or baseflow P concentrations.

Funding

Funded by the New Zealand Ministry for Business, Innovation and Employment's Our Land and Water National Science Challenge (Toitū te Whenua, Toiora te Wai) as part of project Phosphorus Best Practice

History

Publication date

2020-05-07

Language

  • English

Does this contain Māori information or data?

  • No

Journal title

Journal of Soils and Sediments

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