Winterdahl, Mattias
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Research article2011Peer reviewedOpen access
Riparian Zone Influence on Stream Water Dissolved Organic Carbon Concentrations at the Swedish Integrated Monitoring Sites
Winterdahl, Mattias; Temnerud, Johan; Futter, Martyn; Löfgren, Stefan; Bishop, Kevin; Moldan, Filip
Abstract
Short-term variability in stream water dissolved organic carbon (DOC) concentrations is controlled by hydrology, climate and atmospheric deposition. Using the Riparian flow-concentration Integration Model (RIM), we evaluated factors controlling stream water DOC in the Swedish Integrated Monitoring (IM) catchments by separating out hydrological effects on stream DOC dynamics. Model residuals were correlated with climate and deposition-related drivers. DOC was most strongly correlated to water flow in the northern catchment (Gammtratten). The southern Aneboda and Kindla catchments had pronounced seasonal DOC signals, which correlated weakly to flow. DOC concentrations at GAyenrdsjon increased, potentially in response to declining acid deposition. Soil temperature correlated strongly with model residuals at all sites. Incorporating soil temperature in RIM improved model performance substantially (20-62% lower median absolute error). According to the simulations, the RIM conceptualization of riparian processes explains between 36% (Kindla) and 61% (Aneboda) of the DOC dynamics at the IM sites.
Keywords
DOC; RIM; Modeling; Riparian zone; Organic carbon; Soil temperature
Published in
AMBIO: A Journal of the Human Environment
2011, volume: 40, number: 8, pages: 920-930
Publisher: SPRINGER
SLU Authors
Temnerud, Johan
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Futter, Martyn
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Löfgren, Stefan
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Bishop, Kevin
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Associated SLU-program
Lakes and watercourses
Forest
Climate
Acidification
Use of FOMA data
UKÄ Subject classification
Environmental Sciences
Geochemistry
Oceanography, Hydrology, Water Resources
Publication identifier
- DOI: https://doi.org/10.1007/s13280-011-0199-4
Permanent link to this page (URI)
https://res.slu.se/id/publ/60336