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Environmental Sciences

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Theses and Dissertations

2014

Dissolved organic carbon

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Global Assessment Of Radiocarbon Isotopic Analysis For Particulate And Dissolved Organic Carbon In Riverine Systems, Ashley Tucker Jan 2014

Global Assessment Of Radiocarbon Isotopic Analysis For Particulate And Dissolved Organic Carbon In Riverine Systems, Ashley Tucker

Theses and Dissertations

Rivers are a significant source of particulate and dissolved organic carbon (POC, DOC) into inland waters and coastal systems and provide a fundamental linkage between the terrestrial, oceanic, and atmospheric carbon reservoirs. Recent studies have examined the relationship between the quantity and form (POC vs. DOC) of carbon delivered to the aquatic system; however, little is known about the age of POC and DOC exported and how the radiocarbon age may vary with latitude, topographic gradient, vegetation, and land use. I provide the first global synthesis of published radiocarbon values of POC and DOC (∆14C). Inclusion of DOC and POC …