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Temperature dependence of the relationship between pCO(2) and dissolved organic carbon in lakes
University of Federal Rio de Janeiro, Brazil; IMEDEA CSIC UIB, Spain; University of Estado Rio De Janeiro, Brazil.
IMEDEA CSIC UIB, Spain; KAUST, Saudi Arabia.
University of Federal Fluminense, Brazil; University of Federal Fluminense, Brazil.
Linköping University, The Tema Institute, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. University of Federal Rio de Janeiro, Brazil.
2016 (English)In: Biogeosciences, ISSN 1726-4170, E-ISSN 1726-4189, Vol. 13, no 3, 865-871 p.Article in journal (Refereed) PublishedText
Abstract [en]

The relationship between the partial pressure of carbon dioxide (pCO(2)) and dissolved organic carbon (DOC) concentration in Brazilian lakes, encompassing 225 samples across a wide latitudinal range in the tropics, was tested. Unlike the positive relationship reported for lake waters, which was largely based on temperate lakes, we found no significant relationship for low-latitude lakes (< 33 degrees), despite very broad ranges in both pCO(2) and DOC levels. These results suggest substantial differences in the carbon cycling of low-latitude lakes, which must be considered when upscaling limnetic carbon cycling to global scales.

Place, publisher, year, edition, pages
COPERNICUS GESELLSCHAFT MBH , 2016. Vol. 13, no 3, 865-871 p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:liu:diva-126269DOI: 10.5194/bg-13-865-2016ISI: 000370973900016OAI: diva2:913401

Funding Agencies|CAPES (period in Brazil); FAPERJ (period in Spain); CAPES; FAPERJ (Programa Jovem Cientista do Nosso Estado); CNPq

Available from: 2016-03-21 Created: 2016-03-21 Last updated: 2016-04-05

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Enrich Prast, Alex
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Tema Environmental ChangeFaculty of Arts and Sciences
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