Articles | Volume 12, issue 24
https://doi.org/10.5194/bg-12-7535-2015
https://doi.org/10.5194/bg-12-7535-2015
Research article
 | 
21 Dec 2015
Research article |  | 21 Dec 2015

Seasonal dynamics of carbon and nutrients from two contrasting tropical floodplain systems in the Zambezi River basin

A. L. Zuijdgeest, R. Zurbrügg, N. Blank, R. Fulcri, D. B. Senn, and B. Wehrli

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Cited articles

Aitkenhead-Peterson, J. A., McDowell, W. H., and Neff, J. C.: 2 – Sources, Production, and Regulation of Allochthonous Dissolved Organic Matter Inputs to Surface Waters, in: Aquatic Ecosystems, edited by: Findlay, S. E. G. and Sinsabaugh, R. L., Academic Press, Burlington, 25–70, 2003.
Akoko, E., Atekwana, E., Cruse, A., Molwalefhe, L., and Masamba, W. L.: River-wetland interaction and carbon cycling in a semi-arid riverine system: the Okavango Delta, Botswana, Biogeochemistry, 114, 359–380, https://doi.org/10.1007/s10533-012-9817-x, 2013.
Alin, S. R., Aalto, R., Goni, M. A., Richey, J. E., and Dietrich, W. E.: Biogeochemical characterization of carbon sources in the Strickland and Fly rivers, Papua New Guinea, J. Geophys. Res.-Earth, 113, F01S05, https://doi.org/10.1029/2006jf000625, 2008.
Alvarez-Cobelas, M., Angeler, D. G., and Sánchez-Carrillo, S.: Export of nitrogen from catchments: A worldwide analysis, Environ. Pollut., 156, 261–269, https://doi.org/10.1016/j.envpol.2008.02.016, 2008.
Alvarez-Cobelas, M., Sánchez-Carrillo, S., Angeler, D. G., and Sánchez-Andrés, R.: Phosphorus export from catchments: a global view, J. N. Am. Benthol. Soc., 28, 805–820, https://doi.org/10.1899/09-073.1, 2009.
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Two large floodplains hold the peak flows in the Zambezi River system – the dam-impacted Kafue Flats and the largely pristine Barotse Plains. Here we show that the inputs of organic matter and nutrients from such floodplains to the river are strongly affected by the presence of hydropower dams and highlight how floodplains act as large biogeochemical reactors that can behave distinctly differently from the entire catchment.
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