Temporal evolution of organic carbon concentrations in Swiss lakes: trends of allochthonous and autochthonous organic carbon

The Science of the Total Environment
J C Rodríguez-Murillo, M Filella

Abstract

Evaluation of time series of organic carbon (OC) concentrations in lakes is useful for monitoring some of the effects of global change on lakes and their catchments. Isolating the evolution of autochthonous and allochthonous lake OC might be a useful way to differentiate between drivers of soil and photosynthetic OC related changes. However, there are no temporal series for autochthonous and allochthonous lake OC. In this study, a new approach has been developed to construct time series of these two categories of OC from existing dissolved organic carbon (DOC) data. First, temporal series (longer than ten years) of OC have been compiled for seven big Swiss lakes and another 27 smaller ones and evaluated by using appropriate non-parametric statistical methods. Subsequently, the new approach has been applied to construct time series of autochthonous and allochthonous lake OC in the seven big lakes. Doing this was possible because long term series of DOC concentrations at different depths are available for these lakes. Organic carbon concentrations generally increase in big lakes and decrease in smaller ones, although only in some cases are these trends statistically significant. The magnitude of the observed changes is generally ...Continue Reading

References

May 8, 2004·Science·Dennis A HansellNicholas R Bates
May 23, 2009·Environmental Science and Pollution Research International·Petr PorcalPeter J Dillon
Apr 17, 2010·Limnology and Oceanography·Rita AdrianMonika Winder
Apr 20, 2010·The Science of the Total Environment·J M ClarkP J Chapman
Jul 9, 2011·International Journal of Epidemiology·George C M Siontis, John P A Ioannidis
Sep 27, 2014·The Science of the Total Environment·J C Rodríguez-MurilloM Filella

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Citations

Sep 28, 2015·The Science of the Total Environment·Marco MinellaDavide Vione
Jul 14, 2018·Environmental Monitoring and Assessment·Jung Min AhnDong-Seok Shin
Feb 21, 2021·Environmental Science and Pollution Research International·Zhaoxi LiXuefa Wen

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