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| Titel |
Regulation of stream water dissolved organic carbon (DOC) concentrations during snowmelt; the role of discharge, winter climate and memory effects |
| VerfasserIn |
A. Ågren, M. Haei, S. J. Köhler, K. Bishop, H. Laudon |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 9 ; Nr. 7, no. 9 (2010-09-23), S.2901-2913 |
| Datensatznummer |
250004974
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| Publikation (Nr.) |
 copernicus.org/bg-7-2901-2010.pdf |
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| Zusammenfassung |
| Using a 15 year stream record from a northern boreal catchment, we
demonstrate that the inter-annual variation in dissolved organic carbon
(DOC) concentrations during snowmelt was related to discharge, winter
climate and previous DOC export. A short and intense snowmelt gave higher
stream water DOC concentrations, as did long winters, while a high
previous DOC export during the antecedent summer and autumn resulted in
lower concentrations during the following spring. By removing the effect of
discharge we could detect that the length of winter affected the modeled
soil water DOC concentrations during the following snowmelt period, which in turn
affected the concentrations in the stream. Winter climate explained more of
the stream water DOC variations than previous DOC export during the
antecedent summer and autumn. |
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