Sources, Sinks, and Fluxes of Dissolved Organic Carbon in Subarctic Fen Catchments
نویسندگان
چکیده
منابع مشابه
Localized refractory dissolved organic carbon sinks in the deep ocean
[1] The global ocean holds one of Earth’s major carbon reservoirs as dissolved organic matter (662 ± 32 PgC). Most of this material (>95%) is termed refractory dissolved organic carbon (RDOC) as Williams and Druffel (1987) found it to be old relative to the circulation time of the ocean. While RDOC within the modern ocean is thus perceived as vast and only slowly renewed, its mobilization has b...
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Cristina Barrón*, Eugenia T. Apostolaki and Carlos M. Duarte 1 Griffith School of Environment, Australian Rivers Institute-Coast and Estuaries, and Australian Research Council Centre of Excellence for Coral Reef Studies, Griffith University, Brisbane, QLD, Australia 2 Hellenic Centre for Marine Research, Institute of Oceanography, Heraklion, Greece 3 Department of Global Change Research, Instit...
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Fluxes of dissolved organic carbon (DOC) from marine sediments represent a poorly constrained component of the oceanic carbon cycle that may affect the concentration and composition of DOC in the ocean. Here we report the first in situ measurements of DOC fluxes from continental margin sediments (water depths ranging from 95 to 3,700 m), and compare these fluxes with measured benthic fluxes fro...
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This Article is brought to you for free and open access by the Ocean, Earth & Atmospheric Sciences at ODU Digital Commons. It has been accepted for inclusion in OEAS Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Burdige, Davd J.; Alperin, Marc J.; Homstead, Juliana; and Martens, Christ...
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We modeled dissolved phytochelatin concentrations by studying its exudation from phytoplankton and its removal from seawater. Exudation rates were obtained from experiments in which a marine diatom, Thalassiosira pseudonana, was grown in Cd-containing medium. Dissolved phytochelatin in the culture medium was measured as a function of time, and a first-order model was fit to the data to derive e...
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ژورنال
عنوان ژورنال: Arctic and Alpine Research
سال: 1992
ISSN: 0004-0851
DOI: 10.2307/1551658