Temperature controls production but hydrology regulates export of dissolved organic carbon at the catchment scale

Wen, Hang; Perdrial, Julia; Abbott, Benjamin W.; Bernal, Susana; Dupas, Rémi; Godsey, Sarah E.; Harpold, Adrian; Rizzo, Donna; Underwood, Kristen; Adler, Thomas; Sterle, Gary; Li, Li

doi:https://doi.org/10.5194/hess-24-945-2020

Articles | Volume 24, issue 2

https://doi.org/10.5194/hess-24-945-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-24-945-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 2

Research article

| Highlight paper

|

27 Feb 2020

Research article | Highlight paper |

| 27 Feb 2020

Temperature controls production but hydrology regulates export of dissolved organic carbon at the catchment scale

Hang Wen, Julia Perdrial, Benjamin W. Abbott, Susana Bernal, Rémi Dupas, Sarah E. Godsey, Adrian Harpold, Donna Rizzo, Kristen Underwood, Thomas Adler, Gary Sterle, and Li Li

Supplement

https://doi.org/10.5194/hess-24-945-2020-supplement

Data sets

CZO Dataset: Shale Hills - Streamflow (2006-2012) and Stream Water Chemistry (2006-2010) S. L. Brantley and C. J. Duffy http://criticalzone.org/shale-hills/data/datasets/

Short summary

Lateral carbon fluxes from terrestrial to aquatic systems remain central uncertainties in determining ecosystem carbon balance. This work explores how temperature and hydrology control production and export of dissolved organic carbon (DOC) at the catchment scale. Results illustrate the asynchrony of DOC production, controlled by temperature, and export, governed by flow paths; concentration–discharge relationships are determined by the relative contribution of shallow versus groundwater flow.