Articles | Volume 12, issue 1
https://doi.org/10.5194/esurf-12-347-2024
https://doi.org/10.5194/esurf-12-347-2024
Research article
 | 
15 Feb 2024
Research article |  | 15 Feb 2024

Channel cross-section heterogeneity of particulate organic carbon transport in the Huanghe

Yutian Ke, Damien Calmels, Julien Bouchez, Marc Massault, Benjamin Chetelat, Aurélie Noret, Hongming Cai, Jiubin Chen, Jérôme Gaillardet, and Cécile Quantin

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Short summary
Through a river cross-section, we show that fluvial organic carbon in the lower Huanghe has clear vertical and lateral heterogeneity in elemental and isotopic signals. Bank erosion supplies terrestrial organic carbon to the fluvial transport. Physical erosion of aged and refractory organic carbon, including radiocarbon-dead organic carbon source from the biosphere, from relatively deep soil horizons of the Chinese Loess Plateau contributes to fluvial particulate organic carbon in the Huanghe.