Articles | Volume 24, issue 2
Hydrol. Earth Syst. Sci., 24, 945–966, 2020
https://doi.org/10.5194/hess-24-945-2020
Hydrol. Earth Syst. Sci., 24, 945–966, 2020
https://doi.org/10.5194/hess-24-945-2020

Research article 27 Feb 2020

Research article | 27 Feb 2020

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

Hang Wen et al.

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/

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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.