caa a22 4500 605516936 CHVBK 20210128100716.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10533-014-0038-3 doi (NATIONALLICENCE)springer-10.1007/s10533-014-0038-3 Impact of hydro-sedimentary processes on the dynamics of soluble reactive phosphorus in the Seine River [Elektronische Daten] [Lauriane Vilmin, Najla Aissa-Grouz, Josette Garnier, Gilles Billen, Jean-Marie Mouchel, Michel Poulin, Nicolas Flipo] This paper focuses on soluble reactive phosphorus (SRP) dynamics along a 225km stretch of the Seine River, including the Paris urban area, for the 2007-2011 period. The impact of hydro-sedimentary processes on SRP concentrations and fluxes is estimated under various hydrological conditions. Sorption interaction parameters between SRP and suspended matter are experimentally determined on river water samples and are included in a hydro-ecological model. Simulated concentrations are compared to weekly measurements at 11 monitoring stations. The introduction of sorption in the model reduces the root mean square error of simulated SRP concentrations by 20% and allows the simulation of particulate inorganic P (PIP) accumulation in the system. With these ameliorations, the model constitutes a reliable management tool, which is compatible with the requirements of new regulations as the European Water Framework Directive. P mass balances are assessed upstream and downstream the major waste water treatment plant of the Paris urban area. P fluxes in the system are mainly driven by hydrological conditions and sediment-related processes. While SRP is the predominant P form during low flow, PIP accounts for more than 70% of the total P during high flow. Moreover, SRP sorption fluxes are of the same order of magnitude as biotic fluxes affecting SRP concentrations. According to the model, and based on all the available data, 75% of the SRP release by the river bed sediments occurs during high flow periods, and PIP exchanges at the sediment-water interface are more than 4 times higher during high flow periods than during low flow periods. Springer International Publishing Switzerland, 2014 Soluble reactive phosphorus nationallicence Particulate inorganic phosphorus nationallicence Hydro-sedimentary processes nationallicence Hydro-ecological modelling nationallicence Sorption nationallicence Sediment-water fluxes nationallicence Vilmin Lauriane Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut Aissa-Grouz Najla Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut Garnier Josette Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut Billen Gilles Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut Mouchel Jean-Marie Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut Poulin Michel Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut Flipo Nicolas Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut Biogeochemistry Springer International Publishing 122/2-3(2015-02-01), 229-251 0168-2563 122:2-3<229 2015 122 10533 https://doi.org/10.1007/s10533-014-0038-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10533-014-0038-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vilmin Lauriane Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut NATIONALLICENCE 700 1- Aissa-Grouz Najla Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut NATIONALLICENCE 700 1- Garnier Josette Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut NATIONALLICENCE 700 1- Billen Gilles Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut NATIONALLICENCE 700 1- Mouchel Jean-Marie Sorbonne Universités, UPMC Univ Paris 6, UMR 7619 METIS, 4 place Jussieu, BP 123, 75005, Paris, France aut NATIONALLICENCE 700 1- Poulin Michel Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut NATIONALLICENCE 700 1- Flipo Nicolas Geosciences Department, MINES ParisTech, PSL Research University, 35 rue Saint-Honoré, 77305, Fontainebleau cedex, France aut NATIONALLICENCE 773 0- Biogeochemistry Springer International Publishing 122/2-3(2015-02-01), 229-251 0168-2563 122:2-3<229 2015 122 10533