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

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    Type
    Article
    Authors
    Pinho, L.
    Duarte, Carlos M. cc
    Marotta, H.
    Enrich-Prast, A.
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    Date
    2016-02-15
    Permanent link to this record
    http://hdl.handle.net/10754/600213
    
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    Abstract
    The relationship between the partial pressure of carbon dioxide (pCO2) 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°), despite very broad ranges in both pCO2 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.
    Citation
    Temperature dependence of the relationship between pCO2 and dissolved organic carbon in lakes 2016, 13 (3):865 Biogeosciences
    Sponsors
    This research is a contribution to projects from Brazilian research agencies (FAPERJ, CAPES and CNPq). L. Pinho was supported by PhD scholarships from CAPES (period in Brazil) and FAPERJ (period in Spain). A. Enrich-Prast received postdoctoral and other CAPES and CNPq fellowships during studies at Linkoping University. H. Marotta was supported by a research fellowship from FAPERJ (Programa Jovem Cientista do Nosso Estado), and a research grant from CNPq.
    Publisher
    Copernicus GmbH
    Journal
    Biogeosciences
    DOI
    10.5194/bg-13-865-2016
    Additional Links
    http://www.biogeosciences.net/13/865/2016/
    ae974a485f413a2113503eed53cd6c53
    10.5194/bg-13-865-2016
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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