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Multiscale Drivers of Water Chemistry of Boreal Lakes and Streams

Author

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  • Sonja Stendera

    (Swedish University of Agriculture, Department of Environmental Assessment)

  • Richard K. Johnson

    (Swedish University of Agriculture, Department of Environmental Assessment)

Abstract

The variability in surface water chemistry within and between aquatic ecosystems is regulated by many factors operating at several spatial and temporal scales. The importance of geographic, regional-, and local-scale factors as drivers of the natural variability of three water chemistry variables representing buffering capacity and the importance of weathering (acid neutralizing capacity, ANC), nutrient concentration (total phosphorus, TP), and importance of allochthonous inputs (total organic carbon, TOC) were studied in boreal streams and lakes using a method of variance decomposition. Partial redundancy analysis (pRDA) of ANC, TP, and TOC and 38 environmental variables in 361 lakes and 390 streams showed the importance of the interaction between geographic position and regional-scale variables. Geographic position and regional-scale factors combined explained 15.3% (streams) and 10.6% (lakes) of the variation in ANC, TP, and TOC. The unique variance explained by geographic, regional, and local-scale variables alone was

Suggested Citation

  • Sonja Stendera & Richard K. Johnson, 2006. "Multiscale Drivers of Water Chemistry of Boreal Lakes and Streams," Environmental Management, Springer, vol. 38(5), pages 760-770, November.
    • Handle: RePEc:spr:envman:v:38:y:2006:i:5:d:10.1007_s00267-005-0180-8
    DOI: 10.1007/s00267-005-0180-8
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