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Magdalena Bieroza

Magdalena Bieroza
I am a catchment hydrologist, biogeochemist and computer scientist by profession. I am interested in nutrient, sediment and organic matter dynamics in agricultural catchments and streams. I am particularly interested in high-temporal resolution hydrochemical monitoring with in situ sensors.


CURRENT POSITIONS (at Department of Soil and Environment, SLU, SE)

01/2021-         Senior Lecturer in Water Quality in Agricultural Landscapes

12/2018-         Associate Professor in Soil Sciences - Water Quality Management  

10/2018-        Chair and vice-chair of the SLU Future Faculty



Post-doc position in Water Quality and Ecohydrology will be available soon!

The aim of this project is to evaluate if remediation can improve chemical and ecological status of agricultural streams and ditches in Sweden and thus help in reducing eutrophication. The project involves two tasks: 1) field sampling to gather information on hydrology, geomorphology, and chemical and ecological status of remediated and traditional ditches and 2) modelling in HEC-RAS to evaluate how different types of ditch remediation and different maintenance routines impact nutrient and sediment removal.

Meet us in real life!

We will present our results at Ås Soil and Water 4-6th of May and LUWQ 12-15th September

EGU Biogeosciences 

I have been asked to serve as a scientific officer for the Freshwater Biogeosciences sub-division! For more details on the division's work:

EGU 2022 Session on aquatic biogeochemical cycles 23rd of May

08:30–10:00 (CEST), Room 3.16/17
10:20–11:50 (CEST), Room 3.16/17

New exciting projects starting in 2022

Our group has been successful in securing new funding for two research projects on restoration of agricultural ditches in Sweden. If you interested in being involved or hear more about our work, please get in touch.

New interesting papers in 2022 and 2021



MSc course Land use and watershed management to reduce eutrophication

Do you want to learn more about water quality pollution and how to combat eutrophication? Join the MSc course which runs annully in November.

Happy students on a row in a brown field, photo.

PhD course Aquatic systems through the lens of organic matter stability and fate – a coordinated distributed experiment, 4 ECTS

Aquatic systems are governed by complex and scale-dependent interactions between abiotic and biotic components. As organic matter links many biogeochemical cycles e.g., carbon, nitrogen, and phosphorus, it is a robust proxy to understand the complex processes in aquatic systems and constitutes an indicator of overall health of aquatic ecosystems. In this course, we will explore the controls of OM stability and fate in a range of aquatic systems. The data on OM properties will be collected through a coordinated distributed experiment (CDE), in which students will first collect samples in their local aquatic ecosystems and then statistically analyse this unique dataset to provide information on spatial patterns of OM stability and fate through simple measurements with cotton strips, litter bags and collecting water samples for characterisation of OM quality, quantity and GHG emissions. Same measurements will be also conducted at the Swedish Infrastructure for Ecosystem Science (SITES). Observed patterns will be interpreted in the context of dominant hydrological, chemical, and biological processes operating in aquatic ecosystems with evaluation of advantages and limitations of the CDE approaches in aquatic sciences.  Planned for May 2022.

PhD Course, High Temporal Resolution Water Quality Monitoring and Analysis, 1.5 ECTS

PhD course Agricultural catchments in a changing world, 3 ECTS

Do you want to learn about hydrological, biogeochemical, ecological, economic and societal processes controlling agricultural landscapes? Then this course is for you.



1.  Phosphorus, nitrogen and carbon dynamics in agricultural streams.

2.  Diffuse pollution in agricultural catchments: monitoring, modelling and management.

3.  High-temporal resolution monitoring in agricultural catchments.

4.  Natural organic matter dynamics in agricultural catchments.

Canoe and a small viking ship on a river, photo.



2022-2024     Stiftelsen Lantbruksforskning Remediated agricultural ditches in Sweden: evaluation of ecological and chemical status and water quality at a catchment scale under current and future climate – Principal Investigator.

2022-2023      Stiftelsen Oscar & Lili Lamms Minne Reducing erosion in agricultural ditches in Sweden - Principal Investigator.

2020-2024      Stiftelsen Oscar & Lili Lamms Minne Why eutrophication mitigation measures show mixed success in reducing nutrient and sediment losses? - Principal Investigator.

2020-2022       HaV Two-stage ditches in Sweden - Principal Investigator.

2019-2022       FORMAS Two-stage ditches in Sweden – Principal Investigator.

2020-2022       FORMAS  TaRgEting Low-Sorption Soils to reduce phosphorus lossesCo-applicant.



2018-2021       Jordbruksverket Phosphorus ponds with and without sediment removal –  Principal Investigator.

2017-2020       Stiftelsen Lantbruksforskning Towards environmentally friendly Swedish agriculture – Principal Investigator.

2017-2020       FORMAS Are anaerobic conditions in soil the main reason for large leaching losses of phosphorus from arable land? – Co-applicant.

2019-2020      Vetenskapsrådet Conference Grant 4th International Workshop on High Temporal Resolution Water Quality Monitoring and Analysis - Principal Investigator.

2019                  Jordbruksverket Do agri-environmental mitigation measures increase emissions of N2O?  Principal Investigator.

2018-2019       Stiftelsen Carl Tryggers Denitrification in bed sediments of a two-stage ditch and a sedimentation pondPrincipal Investigator.

2017-2019     Stiftelsen ÅForsk Evaluation of the effects of phosphorus and suspended sediments mitigation measures in agricultural catchments Principal Investigator.

2016 - 2017     Marie Skłodowska Curie Individual Fellowship at Department of Soil and Environment (Swedish University of Agricultural Sciences SLU, SE) Hot-spots of phosphorus and nitrogen delivery in time and space in agricultural catchments (HotPaNTS) – Principal Investigator.

2016-2017       Stiftelsen Oscar & Lili Lamms Minne Improved evidence of nutrient hot-spots in agricultural catchments inferred from optical sensorsPrincipal Investigator.



My research has important implications for water quality management. See popular science briefs related to scientific publications:

Hydrologic Extremes and Legacy Sources Can Override Efforts to Mitigate Nutrient and Sediment Losses at the Catchment Scale

One sentence summary: Reducing erosion and diffuse pollution with the agri-environmental mitigation measures can be challenging due to impact of hydrologic extremes and legacy sources of pollution.

What is the deal with the Green Deal: Will the new strategy help to improve European freshwater quality beyond the Water Framework Directive?
One sentence summary: The Green Deal's water quality goals and instruments complements well the Water Framework Directive, however achieving desired water quality improvements by 2030 might be challenging.




2018- 2021 Study Director of the PhD school Focus on Soils and Water (SLU, SE).

2016-2017 Marie Curie Fellowship at Department of Soil and Environment (SLU, SE) Hot-spots of phosphorus and nitrogen delivery in time and space in agricultural catchments - HotPaNTS.

2015-2016 Natural Environment Research Council NERC and Environment Agency Research Fellow (Lancaster University, UK) Nitrate from agriculture: moving from uncertain data to operational responses.

2011-2015 Senior Research Associate in Nutrient Biogeochemistry (Lancaster University, UK) NERC project (PI AL Heathwaite) Phosphorus dynamics in groundwater-fed rivers.

2010-2011 Postdoctoral Research Assistant in Catchment Hydrology (Engineering, Bristol University, UK) Long-term nitrate trends in the Thames with N Howden (PI).



2018 Associate professor (docent) in Water Quality Management (SLU, Sweden)

2010 PhD in Water Engineering, Characterising water treatment works performance using fluorescence spectroscopy (University of Birmingham, UK), Supervisors J Bridgeman and A Baker.

2006 BEng (Hons) in Computer Science (Polish-Japanese Institute of Information Technology, PL).

2005 MSc (Hons) in Hydrology (Mathematical & Natural Sciences, Warsaw University, PL).

2003 BSc (Hons) in Geography (Mathematical & Natural Sciences, Warsaw University, PL).




Please contact me if you are interested in a post-doc, Phd, MSc or BSc project in any of my current research fields. A list of available MSc projects:



Wynants, Maarten, Post-doc, 2021-2023, Water quality modelling

Hallberg, Lukas, PhD, 2020-2024, Two-stage ditches in Sweden.

Houweling, Diederick, MSc, 2022, The longitudinal water quality patterns in agricultural streams.

Ryding, Emma, MSc, 2022,  The role of bed sediments for fractionation of phosphorus in remediated ditches in Sweden.

Holgersson, Linus, MSc, 2022, The role of bed sediments for sorption of phosphorus in remediated ditches in Sweden.

Sakponou, Pierre-Henri , MSc, 2022, The role of macrophytes in controlling the effectiveness of remediated ditches in Sweden.


PREVIOUS STUDENTS (as main supervisor)

Åström, Sheryl, MSc, 2021,  A two-stage ditch - a source or sink of nutrients and sediments?

Nagarajan, Neerajaa, MSc, 2021, The role of agricultural drainage in controlling the effectiveness of two-stage ditches in Sweden.

Gire, Côme, MSc internship, 2021, Hydrochemical and biogeochemical controls of nutrient removal in agricultural streams.

Casali, Emilien, MSc internship, 2021, The role of stream bed sediments in controlling dentirification and phosphorus sorption. 

Eriksson, Adam, MSc, 2020. Water quality and organic matter linkages in waters draining arable fields.

Englund, Sofia, 2020. Optimizing the design of two-stage ditches to improve
nutrient and sediment retention. MSc thesis, Uppsala University, Department of Earth Sciences.

Hodenana, Juan, 2020. Efforts for eutrophication mitigation on the Santa Lucía River Basin: farmers’ experiences, attitudes and motivations. MSc thesis, Uppsala University, Department of Earth Sciences.

Uwera, Honorine, 2020. How robust is water quality determination with optical measurements for highly polluted agricultural waters? MSc thesis, SLU, Department of Soil and Environment.

Larsson, Åsa, 2018. Nutrient concentrations before and after the Focus on Phosphorus project in E23 catchment. BSc thesis, SLU, Department of Soil and Environment.

Abade Smoginski, Ana Paula, 2017. Can we use optical sensors in highly turbid agricultural streams?. MSc thesis, SLU, Department of Soil and Environment.

Ehnvall, Betty, 2017. Organic matter properties and their relation to phosphorus and nitrogen concentrations in Swedish agricultural streams. Second cycle, A2E. Uppsala: SLU, Dept. of Soil and Environment.


Selected publications


Kurajica L, Ujević Bošnjak M, Kinsela AS, Bieroza M, Štiglić J, Waite TD, Capak K,  Romić Ž, 2022, Mixing of arsenic-rich groundwater and surface water in drinking water distribution systems: Implications for contaminants, disinfection byproducts and organic components. Chemosphere, 292, 133406.

Speir S, Tank J, Bieroza M, Mahl U, Royer T, 2021, Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds. Biogeochemistry, 181, 8.

Campeaua A, Eklöf K,Soerensen A, Åkerblom S, Yuan S, Hintelmann H, Bieroza M, Köhler S, Zdanowicz C, 2021, Sources of riverine mercury across the Mackenzie River Basin; inferences from a combined Hg C isotopes and optical properties approach. Science of The Total Environment, 150808.

Bieroza M, Bol R, Glendell M, 2021, What is the deal with the Green Deal: Will the new strategy help to improve European freshwater quality beyond the Water Framework Directive? Science of the Total Environment, 791, 148080.

Pi K, Bieroza M, Brouchkov A, et al., 2021, The Cold Region Critical Zone in Transition: Responses to Climate Warming and Land Use Change. Annual Review of Environment and Resources, 46.

Djodjic F, Bieroza M, Bergström L, 2021, Land use, geology and soil properties control nutrient concentrations in headwater streams. Science of the Total Environment, 772, 145108.

Heathwaite AL and Bieroza M, 2020, Fingerprinting hydrological and biogeochemical drivers of freshwater quality. Hydrological Processes.

Bieroza M, Dupas R, Glendell M, McGrath G, Mellander P-E, 2020,Hydrological and Chemical Controls on Nutrient and Contaminant Loss to Water in Agricultural Landscapes. Water.

Bieroza M, Bergström L, Ulén B, Djodjic F, Tonderski K, Heeb A, Svensson J and 
Malgeryd J, 2019, Hydrologic Extremes and Legacy Sources Can Override Efforts to Mitigate Nutrient and Sediment Losses at the Catchment Scale. Journal of Environmental Quality. doi:10.2134/jeq2019.02.0063.

Ulén B, Geranmayeh P, Blomberg M, Bieroza M, 2019, Seasonal variation in nutrient retention in a free water surface constructed wetland monitored with flow-proportional sampling and optical sensors. Ecological Engineering. doi: 10.1016/j.ecoleng.2019.105588.

Bol R, Gruau G, Mellander P-E, Dupas R, Bechmann M, Skarbøvik E, Bieroza M, Djodjic F, Glendell M, Jordan P, Van der Grift B, Rode M, Smolders E, Verbeeck M, Gu S, Klumpp E, Pohle I, Fresne M and Gascuel-Odoux C, 2018, Challenges of Reducing Phosphorus Based Water Eutrophication in the Agricultural Landscapes of Northwest Europe. Front. Mar. Sci. 5:276. doi: 10.3389/fmars.2018.00276.

Bieroza MZ, Heathwaite AL, Bechmann M, Kyllmar K & Jordan P, 2018, The concentration-discharge slope as a tool for water quality management, Sci Total Environ, 630, 738–749.


All publications are available through self-archiving on my Research Gate profile at

If you would like a copy of any of my articles, please send me an email. 


Senior Lecturer at the Department of Soil and Environment; Agricultural water management
Telephone: +4618673537
Postal address:
Institutionen för mark och miljö
Box 7014
750 07 Uppsala
Visiting address: Lennart Hjelms väg 9, Uppsala