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Modeling the impact of potential wetlands on phosphorus retention in a Swedish catchment
SMHI, Research Department, Hydrology.ORCID iD: 0000-0001-8314-0735
SMHI, Research Department, Hydrology.ORCID iD: 00-0002-4563-2752
2005 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 34, no 7, 544-551 p.Article in journal (Refereed) Published
Abstract [en]

In southern Sweden, wetlands are constructed to remove nitrogen (N) in agricultural catchments. The possible effects of such wetlands on riverine phosphorus (P) were also estimated using input-output data from three well-monitored wetlands. This was done to formulate a simple model for removal of P that is dependent on inflow characteristics. Next, the N- and P-reducing effects of wetlands were modeled on a catchment scale (1900 km 2) using the HBV-NP model and various assumptions about the wetland area and location. All three wetlands functioned as sinks for total P (tot-P) and for total suspended solids (TSS) with a removal of 10% to 31% and 28% to 50%, respectively. Mean P-removal rates of 17-49 kg ha(-1) yr(-1) were well simulated with the model. Catchment scale simulations indicated that wetlands were more efficient (in percentage of load) as traps for P than for N and that this may motivate the construction of wetlands for P removal far upstream from the catchment outlet.

Place, publisher, year, edition, pages
2005. Vol. 34, no 7, 544-551 p.
National Category
Oceanography, Hydrology, Water Resources
Research subject
Hydrology
Identifiers
URN: urn:nbn:se:smhi:diva-1258DOI: 10.1639/0044-7447(2005)034[0544:MTIOPW]2.0.CO;2ISI: 000233522100010PubMedID: 16435744OAI: oai:DiVA.org:smhi-1258DiVA: diva2:843491
Available from: 2015-07-29 Created: 2015-05-26 Last updated: 2016-05-25Bibliographically approved

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