Research interests

• Revovery from acidification in surface water including trend test of chemical and biological data, development of acidification indicators and modelling of effects from confounding factors such as climate and organic matter.
• Control of nutrients in surface water by deposition, soil leaching and climatic factors. The analysis includes trend tests and regression models.
• Spatial and temporal variation in stream chemistry. The work includes modelling of small stream chemistry from downstream sites and development of a GIS based stream network for Sweden

Ongoing projects/other activities

• Revision of the Environmental Quality Criteria for acidification.
• Responsible for the execution of national environmental monitoring of water chemistry in lakes and streams.
• Supporting The Swedish Environmental Protection Agency with development of new Ecological Quality Criteria and evaluation of Environmental Objectives.
• Representing Sweden in ICP-Waters within UN-ECE.
• Responsible for calculation and development of calculations of Critical loads for acidification in lakes for national reporting to ICP-Modelling and Mapping within UN-ECE.

Appointments

Teaching

Student supervision (active students)

Selected publications

Fölster, J. and Wilander, A. (2002). ”Recovery from acidification in Swedish forest streams” Environmental Pollution. 117, 379-389.

Fölster, J., Bishop, K., Krám, P. Kvarnäs, H. and Wilander , A. (2003). ”Time series of long-term annual fluxes in the streamwater of nine forest catchments from the Swedish environmental monitoring program (PMK 5).” Science of the Total Environment 310(1-3): 113-120.

Fölster, J., Bringmark, L. and Lundin, L. (2003). ”Temporal and spatial variations in soilwater chemistry at three acid forest sites.” Water Air and Soil Pollution 146(1-4): 171-195.

Folster, J., E. Goransson, K. Johansson, and A. Wilander (2005), ”Synchronous variation in water chemistry for 80 lakes in southern Sweden”, Environ. Monit.  Assess., 102, 389-403.

Fölster, J., Andrén, C., Bishop, K., Buffam, I., Cory, N., Goedkoop, W., Holmgren, K., Johnson, R., Laudon, H., and Wilander, A.: 2006, ”New Environmental Quality Criteria for acidification in lakes in Sweden - an application of studies on the relationship between biota and waterchemistry.” Water Air And Soil Pollution. In press.

Johnson, R. K., Goedkoop, W., Fölster, J., and Wilander, A.: 2006, ”Relationships between macroinvertebrate communities of stony littoral habitats and water chemistry variables indicative of acid-stress.” Water Air And Soil Pollution, In Press.