Articles | Volume 14, issue 22
Biogeosciences, 14, 5039–5051, 2017
https://doi.org/10.5194/bg-14-5039-2017
Biogeosciences, 14, 5039–5051, 2017
https://doi.org/10.5194/bg-14-5039-2017

Research article 14 Nov 2017

Research article | 14 Nov 2017

New molecular evidence for surface and sub-surface soil erosion controls on the composition of stream DOM during storm events

Marie Denis et al.

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Cited articles

Ågren, A., Buffam, I., Jansson, M., and Laudon, H.: Importance of seasonality and small streams for the landscape regulation of dissolved organic carbon export, J. Geophys. Res., 112, 1–11, https://doi.org/10.1029/2006JG000381, 2007.
Aitkenhead, J. A., Hope, D., and Billett, M. F.: The relationship between dissolved organic carbon in stream water and soil organic carbon pools at different spatial scales, Hydrol. Process., 13, 1289–1302, 1999.
Aubert, A. H., Gascuel-Odoux, C., Gruau, G., Akkal, N., Faucheux, M., Fauvel, Y., Grimaldi, C., Hamon, Y., Jaffrézic, A., Lecoz-Boutnik, M., Molénat, J., Petitjean, P., Ruiz, L., and Merot, P.: Solute transport dynamics in small, shallow groundwater-dominated agricultural catchments: insights from a high-frequency, multisolute 10 yr-long monitoring study, Hydrol. Earth Syst. Sci., 17, 1379–1391, https://doi.org/10.5194/hess-17-1379-2013, 2013.
Bazemore, D. E., Eshleman, K. N., and Hollenbeck, K. J.: The role of soil water in stormflow generation in a forested headwater catchment: synthesis of natural tracer and hydrometric evidence, J. Hydrol., 162, 47–75, 1994.
Bergendahl, J. A. and Grasso, D.: Mechanistic Basis for Particle Detachment from Granular Media, Environ. Sci. Technol., 37, 2317–2322, https://doi.org/10.1021/es0209316, 2003.
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Short summary
The results of this study highlight the changes of DOM composition in soil solutions and surface runoff, probably controlled by water-table dynamics and pre-event hydrological conditions. These changes should be taken into account for a better understanding of micropollutant mobility. Moreover, this work has implications for modeling DOM export in headwater catchments, as many studies assume that DOM transfer during storm events consists of the flushing of pre-existing soil solution DOM.
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