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Volume 13, issue 3
Biogeosciences, 13, 865–871, 2016
https://doi.org/10.5194/bg-13-865-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 865–871, 2016
https://doi.org/10.5194/bg-13-865-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 15 Feb 2016

Research article | 15 Feb 2016

Temperature dependence of the relationship between pCO2 and dissolved organic carbon in lakes

L. Pinho et al.

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Abril, G., Bouillon, S., Darchambeau, F., Teodoru, C. R., Marwick, T. R., Tamooh, F., Ochieng Omengo, F., Geeraert, N., Deirmendjian, L., Polsenaere, P., and Borges, A. V.: Technical Note: Large overestimation of pCO2 calculated from pH and alkalinity in acidic, organic-rich freshwaters, Biogeosciences, 12, 67–78, https://doi.org/10.5194/bg-12-67-2015, 2015.
Ab'Saber, A.: Os Domínios de Natureza no Brasil: Potencialidades paisagísticas, Ateliê editorial Brazil, 2003.
Aufdenkampe, A., Mayorga, E., Raymond, P., Melack, J., and Doney, S.: Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere, Front. Ecol. Environ., 9, 53–60, 2011.
Brow, J., Gillooly, J., Allen, A., Savage, V., and West, G.: Toward a metabolic theory of ecology, Ecology, 85, 1771–1789, 2004.
Chambers, J., Higuchi, N., Schimel, J., Ferreira, L., and Melack, J.: Decomposition and carbon cycling of dead trees in tropical forests of the central Amazon, Oecologia, 122, 380–388, 1999.
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Unlike the positive relationship reported before between partial pression of carbon dioxide and dissolved organic carbon for lake waters, we found no significant relationship in our low-latitude lakes, despite very broad ranges in both variables. The strength of this relationship declines with increasing water temperature, suggesting substantial differences in carbon cycling in warm lakes, which must be considered when upscaling limnetic carbon cycling to global scales.
Unlike the positive relationship reported before between partial pression of carbon dioxide and...
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