Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 22
Articles | Volume 22, issue 22
https://doi.org/10.5194/bg-22-7363-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-7363-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 22
Research article
 | 
27 Nov 2025
Research article |  | 27 Nov 2025

Toward a typology of river functioning: a comprehensive study of the particulate organic matter composition at the multi-river scale

Florian Ferchiche, Camilla Liénart, Karine Charlier, Jonathan Deborde, Mélanie Giraud, Philippe Kerhervé, Pierre Polsenaere, and Nicolas Savoye

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Short summary
This study examines the particulate organic matter (POM) composition and dynamics in 23 temperate rivers. Carbon and nitrogen isotope analysis revealed four river types based on dominant POM sources (phytoplankton, terrestrial POM). Catchment characteristics influence POM composition while seasonal variations in river flow and sediment resuspension drive POM dynamics. This study improves the understanding of river systems and calls for further studies exploring downstream estuarine functioning.
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