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    Export is not enough : nutrient cycling and carbon sequestration

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    m364p289.pdf (231.7Kb)
    Date
    2008-07-29
    Author
    Gnanadesikan, Anand  Concept link
    Marinov, Irina  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/4452
    As published
    https://doi.org/10.3354/meps07550
    DOI
    10.3354/meps07550
    Keyword
     Ocean iron fertilization; Preformed nutrients; Carbon sequestration 
    Abstract
    The question of whether ocean iron fertilization (OIF) can yield verifiable carbon sequestration is often cast in terms of whether fertilization results in enhanced particle export. However, model studies show that oceanic carbon storage is only weakly related to global particle export—depending instead on an increase in the carbon associated with the pool of remineralized nutrients. The magnitude of such an increase depends on circulation, stoichiometric ratios and gas exchange. We argue that this puts serious challenges before efforts to properly credit OIF that must be taken into account at the design stage.
    Description
    Author Posting. © Inter-Research, 2008. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 364 (2008): 289-294, doi:10.3354/meps07550.
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    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Marine Ecology Progress Series 364 (2008): 289-294
     

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