Sökning: WFRF:(Tonderski Karin S.)
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Modeling the impact...
Modeling the impact of potential wetlands on phosphorus retention in a Swedish catchment
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- Tonderski, Karin S (författare)
- Linköpings universitet,Ekologi,Tekniska högskolan
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- Arheimer, Berit (författare)
- Swedish Meteorological and Hydrological Institute
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- Pers, Charlotta B. (författare)
- Swedish Meteorological and Hydrological Institute
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(creator_code:org_t)
- Royal Swedish Academy of Sciences, 2005
- 2005
- Engelska.
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Ingår i: Ambio. - : Royal Swedish Academy of Sciences. - 0044-7447 .- 1654-7209. ; 34:7, s. 544-551
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- 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.
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