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Recalcitrant dissolved organic carbon fractions
Hansell, D.A. (2013). Recalcitrant dissolved organic carbon fractions. Ann. Rev. Mar. Sci. 5: 421-445. hdl.handle.net/10.1146/annurev-marine-120710-100757
In: Annual Review of Marine Science. Annual Reviews: Palo Alto, Calif.. ISSN 1941-1405, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    dissolved organic matter, organic matter reactivity, ocean carbon cycle

Author  Top 
  • Hansell, D.A.

Abstract
    Marine dissolved organic carbon (DOC) exhibits a spectrum of reactivity, from very fast turnover of the most bioavailable forms in the surface ocean to long-lived materials circulating within the ocean abyss. These disparate reactivities group DOC by fractions with distinctive functions in the cycling of carbon, ranging from support of the microbial loop to involvement in the biological pump to a hypothesized major source/sink of atmospheric CO2 driving paleoclimate variability. Here, the major fractions constituting the global ocean's recalcitrant DOC pool are quantitatively and qualitatively characterized with reference to their roles in carbon biogeochemistry. A nomenclature for the fractions is proposed based on those roles.

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