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Pia Geranmayeh (Kynkäänniemi)

Pia Geranmayeh
My main research is on nutrient retention in constructed wetlands treating agricultural runoff

Presentation

I have a PhD in soil science with focus on water quality management. I evaluate measures to mitigate nutrient losses from agricultural land to waters. Specifically my research is focusing on how good design and placement of constructed wetlands increase their efficiency in trapping both particle bound phosphorus and dissolved reactive phosphorus that was lost from fields. Besides wetland water quality and sediment, the upstream catchments are studied.

 

 

Information material

More information about the studies in the Bergaholm wetland you can find here

This is a Swedish film about wetlands for reducing phosphorus; how, where and why to construct them. An English subtitle will be uploaded soon.

Information folder in Swedish on how to "Catch Phosphorus- Wetlands, Filters and Two-stage channels".

Information folder in Swedish on “Phosphorus losses from agriculture – causes and effective counter measures”

Geranmayeh P. och Aronsson, H. 2015. Fosforförluster från jordbruksmark – bakomliggande orsaker och effektiva motåtgärder. Rapport Stiftelsen Lantbruksforskning. View as pdf here.
 
L. Bergström, Kirchmann H., Djodjic F., Kyllmar K., Ulén B., Liu J., Andersson H., Aronsson H., Börjesson G., Kynkäänniemi P., Svanbäck A. and Villa A. 2015. Turnover and Losses of Phosphorus in Swedish Agricultural Soils: Long-Term Changes, Leaching Trends, and Mitigation Measures. Journal of Environmental Quality 44, 512-523. View as pdf here.

Johannesson KM, Kynkäänniemi P, Ulén B, Weisner SEB, Tonderski KS. 2015. Phosphorus and particle retention in constructed wetlands—A catchment comparison. Ecological Engineering 80: 20-31. View as pdf here.

P. Kynkäänniemi, 2014. Small Wetlands Designed for Phosphorus Retention in Swedish Agricultural Areas
Efficiency Variations during the First Years after Construction. (Doctoral thesis). Acta Universitatis agriculturae Sueciae 2014:70. View as pdf here.

P. Kynkäänniemi, Ulén B., Torstensson G. and Tonderski K. S. 2013. Phosphorus Retention in a Newly Constructed Wetland Receiving Agricultural Tile Drainage Water. Journal of Environmental Quality 42, 596–605. View as pdf here.

Parvage M.M., Kirchmann H., Kynkäänniemi P. & Ulén B.. 2011. Impact of horse grazing and feeding on phosphorus concentrations in soil and drainage water. Soil Use and Management, 27, 367–375.

Kynkäänniemi, P. 2006. Reningsfunktion i en lågbelastad våtmark. Seminarier och examensarbeten Nr. 57. Sveriges lantbruksuniversitet (SLU). PDF-file

List of publications on monitoring of agricultural fields is found here P. Kynkäänniemi,

 

Spara

Research

The aim for my project is to investigate how good design and placement of constructed wetlands can reduce the load of both particulate and reactive phosphorus from agricultural fields to surface water. A pair of constructed wetlands for phosphorus retention will be established on clay soils in central Sweden. The wetlands water quality and sediment will be studied as well as the catchment area.

Selected publications

Geranmayeh P., K.M. Johannesson, B. Ulén & K.S. Tonderski. 2018. Particle deposition, resuspension and phosphorus accumulation in small constructed wetlands. Ambio 47: 134-145.

Ulén B., M. Larsbo, J. Koestel, Q. Hellner, M. Blomberg & P. Geranmayeh. 2018. Assessing strategies to mitigate phosphorus leaching from drained clay soils. Ambio 47: 114-123.

Bergström L., H. Kirchmann, F. Djodjic, K. Kyllmar, B. Ulén, J. Liu, H. Andersson, H. Aronsson, G. Börjesson, P. Kynkäänniemi, A. Svanbäck & A. Villa. 2015. Turnover and Losses of Phosphorus in Swedish Agricultural Soils: Long-Term Changes, Leaching Trends, and Mitigation Measures. Journal of Environmental Quality 44: 512-523.

Kynkäänniemi P., 2014. Small Wetlands Designed for Phosphorus Retention in Swedish Agricultural Areas. Efficiency Variations during the First Years after Construction. (Doctoral thesis). Acta Universitatis agriculturae Sueciae 2014:70.

Johannesson K.M., P. Kynkäänniemi, B. Ulén & K.S. Tonderski. 2014. Phosphorus and particle retention in constructed wetlands- a catchment comparison. Ecological Engineering 80: 20-31.

Kynkäänniemi P., Ulén, B., Torstensson, G. & Tonderski, K. S. 2013. Phosphorus retention in a newly constructed wetland receiving agricultural tile drainage water. Journal of Environmental Quality 42:596-605.

Parvage M.M., Kirchmann H., Kynkäänniemi P. & Ulén B. 2011. Impact of horse grazing and feeding on phosphorus concentrations in soil and drainage water. Soil Use and Management, 27:367–375.

 

List of publications of Swedish reports and information material is shown on the Swedish website.


Contact
Researcher at the Department of Aquatic Sciences and Assessment; Section for Geochemistry and Hydrology
Telephone: 018-673124
Postal address:
Institutionen för vatten och miljö
Box 7050
750 07 UPPSALA
Visiting address: Lennart Hjelms väg 9, Uppsala