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Rapid biotic molecular transformation of fulvic acids in a karst aquifer.
Geochim. Cosmochim. Acta 71, 5474-5482 (2007)
The study of molecular transformation processes of dissolved organic carbon (DOC) in the environment significantly contributes to a better understanding of the global biogeochemical organic matter cycle. In an oxic karst groundwater system, in which the most powerful abiotic DOC degradative reactions, photodegradation and metal-mediated redox chemistry, are at best marginal contributors, a near complete turnover of fulvic acids (FAs) has been observed within decades (not, vert, similar60 years). Depletion of oxygen for a very extensive range of aliphatic and aromatic carbon chemical environments has been confirmed as well as the formation of novel classes of compounds, suggesting a major contribution from biotic processes. From these results we infer that FAs must be perceived as a rather active participant in the global carbon cycle. Molecular-level alterations of such magnitude and rapidity on such short-time scales ought to be considered as widespread in the processing of “refractory” DOC in the environment.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
3.751
1.749
49
54
Anmerkungen
Besondere Publikation
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2007
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0016-7037
e-ISSN
1872-9533
Zeitschrift
Geochimica et Cosmochimica Acta
Quellenangaben
Band: 71,
Heft: 22,
Seiten: 5474-5482
Verlag
Elsevier
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Groundwater Ecology (IGOE)
Institute of Ecological Chemistry (IOEC)
Institute of Ecological Chemistry (IOEC)
POF Topic(s)
20403 - Sustainable Water Management
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504300-001
G-505100-007
G-505100-007
WOS ID
000251052100014
Scopus ID
35648957092
Erfassungsdatum
2007-11-15