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Kinematic model of solute transport in stream networks: Example with phosphate retention in Morsa watershed, Norway
Department of Biometry and Informatics Swedish University of Agricultural Sciences.
2004 (English)In: Archives of Hydro-engineering and Environmental Mechanics, ISSN 1231-3726, ISSN 1231-3726, Vol. 51, no 1, 41-53 p.Article in journal (Refereed) Published
Abstract [en]

A theoretical description of reactive solute transport in a network of stream channels is derived by convoluting unit solutions based on a physical representation of transport and topographical information of the distributions of solute load as well as pathways. The theory is applied to a generic analysis of the phosphate export in Morsa watershed due to the load from 620 individual households with a local wastewater treatment. Essential factors for the phosphate export is filtering of the water in stream-bed sediments through a distribution of hyporheic flow paths of various lengths. This generic study indicates that a significant portion of phosphate is retained in the hyporheic zones for a long time. The 90% recovery time following a hypothetical remediation action in the households is expected to be in the order of one decade.

Place, publisher, year, edition, pages
2004. Vol. 51, no 1, 41-53 p.
Keyword [en]
solute transport, watersheds, stream network, hyporheic zone, transport model
National Category
Geosciences, Multidisciplinary Geophysics
URN: urn:nbn:se:kth:diva-58437ScopusID: 2-s2.0-4344578834OAI: diva2:473060

QC 20120109

Available from: 2012-01-05 Created: 2012-01-05 Last updated: 2014-03-31Bibliographically approved

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