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This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Inland waters have been recognized as a significant source of carbon dioxide (CO 2) to the atmosphere at the global scale. Fluxes of CO 2 between aquatic systems and the atmosphere are calculated from(More)
A lack of appropriate proxies has traditionally hampered our ability to distinguish riverine organic carbon (OC) sources at the landscape scale. However, the dissection of C4 grasslands by C3-enriched riparian vegetation, and the distinct carbon stable isotope signature (δ13C) of these two photosynthetic pathways, provides a unique setting to assess the(More)
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