Articles | Volume 12, issue 1
https://doi.org/10.5194/esurf-12-347-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-12-347-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Feb 2024
Research article |
| 15 Feb 2024
| 15 Feb 2024
Channel cross-section heterogeneity of particulate organic carbon transport in the Huanghe
Yutian Ke
CORRESPONDING AUTHOR
GEOPS, Université Paris-Saclay-CNRS, 91405 Orsay, France
present address: Division of Geological and Planetary Science, California Institute of Technology, Pasadena, CA 91125, USA
Damien Calmels
GEOPS, Université Paris-Saclay-CNRS, 91405 Orsay, France
Julien Bouchez
Institut de Physique du Globe de Paris, Université de Paris, CNRS, 75005 Paris, France
Marc Massault
GEOPS, Université Paris-Saclay-CNRS, 91405 Orsay, France
Benjamin Chetelat
School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, 300072 Tianjin, China
Aurélie Noret
GEOPS, Université Paris-Saclay-CNRS, 91405 Orsay, France
Hongming Cai
Institut de Physique du Globe de Paris, Université de Paris, CNRS, 75005 Paris, France
Jiubin Chen
School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, 300072 Tianjin, China
Jérôme Gaillardet
Institut de Physique du Globe de Paris, Université de Paris, CNRS, 75005 Paris, France
Cécile Quantin
GEOPS, Université Paris-Saclay-CNRS, 91405 Orsay, France
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In this paper, we introduce the largest and most comprehensive database for riverine particulate organic carbon carried by suspended particulate matter in Earth's fluvial systems: 3546 data entries for suspended particulate matter with detailed geochemical parameters are included, and special attention goes to the elemental and isotopic carbon compositions to better understand riverine particulate organic carbon and its role in the carbon cycle from regional to global scales.
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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.
Through a river cross-section, we show that fluvial organic carbon in the lower Huanghe has...
