Drone photo of the prepared biochar amendments on Swedish agricultural fields
RESEARCH GROUP

SLU Biochar network

Updated: June 2025

At SLU, biochar research is being pursued by a network of researchers and projects with diverse aims across several fields of research. Here you can navigate SLU’s biochar projects and publications

A red tractor transports an orange bag in an arable field
Photo: Harald Cederlund

Biochar and smallholder farmers in Kenya. Contact: Cecilia Sundberg.

Biochar as a metal trap in soil – mechanisms, modelling and ageing. VR-project (Swedish Research Council), 2021- 2025. PI: Carin Sjöstedt.

On-farm biochar filters for removal of organic micropollutants from reclaimed water for agricultural irrigation (Stiftelsen Lantbruksforskning). PI: Oksana Golovko.

Phosphorus availability in sludge and sludge biochar. Development project funded by Svensk Vatten, 2023-2028. 

Iron-rich biochar from residues such as slow-acting fertilizers and for faster decomposition of chlorinated hydrocarbons. Formas' project, 2023-2025 

Treatment of low-contaminated soil with biochar produced from organic waste for sustainable resource use and circular economy (BALANCE). 

Biochar Stability: supporting transparent & reliable carbon removal. Research Project funded by the Swedish Energy Agency 2022-2025. PI: Cecilia Sundberg.

Reducing pesticide transport from agricultural drainage systems using biochar filters. Project funded by FOMA SLU. PI: Alina Koch.

Researcher in a white coat prepare samples of biochar
Photo: Harald Cederlund

Department of Soil and the Environment

The Department of Soil and the Environment research includes biochar functions and behavior in soils, including impacts on nitrogen cycling, agronomy, and metal speciation and immobilization.

Carin Sjöstedt, Researcher

Daniel Basalirwa, Postdoctoral Researcher

Erik Karltun, Researcher, Researcher

Haichao Li, Postdoctoral Researcher 

Department of Aquatic Sciences and Assessment

The Department of Aquatic Sciences and Assessment focuses its biochar research on the effects of biochar on contaminants of emerging concern, specifically organic micropollutants and persistent organic pollutants.

Karin Wiberg, Professor

Lutz Ahrens 

Oksana Golovko, Associate Professor

Alberto Celma, Postdoctoral Researcher

Maximilian Tyka, Doctoral Student

Patrick (Tsz Yung) Wong, Doctoral Student

Malhun Fakioglu, Doctoral Student

Department of Biosystems and Technology

The Department of Biosystems and Technology research regarding biochar focuses on the impact of biochar in cropping systems and agricultural greenhouse gas emissions

Malin Hultberg, Senior Lecturer

Maria Ernfors, Senior Lecturer

Helene Larsson Jönsson, Researcher

Department of Forest Ecology and Management

The Department of Forest Ecology and Management research includes forest soil microbial response to biochar addition, including microbial diversity, decomposition rate and soil nutrient dynamics.

Michael Gundale, Professor

Gert Nyberg, Coordinator

Department of Energy and Technology

The Department of Energy and Technology research on biochar is primarily conducted by the bioenergy systems research group and focuses on environmental systems analysis of biochar production and use.

Cecilia Sundberg, Senior Lecturer

Lisa Zakrisson, Doctoral Student

Pierre Van Rysselberge, Doctoral Student

Additional researchers

Harald Cederlund, Researcher at the Department of Molecular Sciences: Researches the use of biochars as cheap adsorbents for reducing leaching of pesticides and nutrients from point sources in agriculture, and studies of how amendments of biochars to agricultural soil affect the environmental fate of pesticides.

Thomas Kätterer, Professor at the Department of Ecology: Researches biochars role in carbon and nitrogen cycling in terrestrial ecosystems, including biochars potential role in agriculture and in climate mitigation through carbon sequestration.

Sara Hallin, Professor at the Department of Forest Mycology and Plant Pathology: Researches the ecology of microbial communities in wetland and other terrestrial ecosystems, investigating biochar's role in carbon and nitrogen biogeochemical cycles as well as taking part in biochar research on contaminated soils.

A red tractor transports an orange bag in an arable field
Photo: Harald Cederlund

Active biochar research at SLU covers a wide array of applications and environmental functions. Are you interested in working with SLU’s biochar research? Reach out with questions or to collaborate with SLU’s biochar network.

If you have a specific question or interest, please feel free to reach out to the department or researcher of primary investigator of interest. You can find the full list of departments and researchers under the tab "Researchers" and their contact information through the "Group members" to the right.

If you have a general question regarding the SLU biochar research network, feel free to contact Cecilia Sundberg.