Åslög Dahl, Researcher

Phone: +46 (0)31 786 2664
Mobile phone: +46 (0)707 55 69 62
Fax: +46 (0)31 786 2560

My research is mainly related to aerobiology. I focus on airborne pollen and the ecology of plants that produce them, i.e., the effect of climate on phenology and reproductive effort, and also on meteorology, pollen release and transport. As a spin-off, I work with meteorological effects on apple production. In cooperation with allergists, I am involved in studies of the impact of allergenic pollen on symptoms and life quality, and the additive effects of allergenic pollen and air pollution. I am responsible for scientific development in (and one of the founders of) the university-derived company Botaniska Analysgruppen i Göteborg AB, that provide services regarding fungi in damp buildings and as plant pathogens. Thus, fungi as bioaerosols and as causes of health problems are also items for my attention, in order to be able to respond to the frequent requests I get from stakeholders for information concerning these matters .

I am responsible for the GU Pollen Laboratory, where airborne pollen is monitored since 1975. We forecast their occurrence and deliver them to the public, media and health care. Our pollen data are also used in clinical trials. As an ancillary service, we analyse pollen in honey and educate bee-keepers. I am the coordinator of the research programme Aerobiology within Gothenburg Atmospheric Centre (GAC), and I am member of the coordination group for the Swedish National Phenology Network (SWE-NPN). I am co-author of a couple of books, former member of COST Action groups on phenology (COST725) and allergenic pollen (COSTE0603), and presently member of COST Action SMARTER, acting on the control of the invasive and allergenic ragweed (Artemisia artemisiifolia).

Annemieke Gärdenäs, Lecturer


+46 31 786 6663

I’m a system ecologist from a Biogeophysical perspective. I study how biological, chemical and physical processes together govern fluxes of carbon, nitrogen, and radionuclides in terrestrial ecosystems. My research interests fits within the triangle of i) sustainable land use and management, ii) environmental change and iii) other anthropogenic drivers. Examples of other anthropogenic drivers are policy, economy, as well as long-distance contamination by nitrogen or radioactive deposition. I develop and refine process-oriented models to analyze relationships between management, vegetation, soil, climate and hydrology. Data from long-term experiments and the Swedish national soil inventory are used to test hypotheses and validate models. With my research I aim to contribute to improved understanding of land-climate interactions and thereby provide scientific base for sustainable land use. Currently I’m leading a Formas-funded project ‘Organic Beef production and other Ecosystem Services’ with research responsibility for Climatic impact. I’m also a core member of the Formas strong research environment IMPRESS.

Per-Erik Karlsson, Adjunt Professor


Tel: +46 31 786 6663
Fax: +46 31 786 2560

Senior scientist at IVL Swedish Environmental Research Institute in Gothenburg. PhD in Plant Physiology. Appointed Professor in Plant Physiology, Air Pollution Impacts on Plants, University of Gothenburg.

Expertize: Interactions between the atmosphere and the vegetation. Tropospheric ozone; monitoring and assessing impacts on the vegetation. Acidification and eutrophication of forest soils and waters as caused by atmospheric deposition and forest practise. Carbon stock changes in forests, in particular related to forest management in connection with industrial production, ”Carbon Footprints”. Measurements of the meteorology close to the ground. Modelling of the gas exchange between the vegetation and the atmosphere.

Håkan Pleijel, Professor

Porträttbild 1
Tel: 031-786 25 32
Fax: 031-786 2560

My research is focused on air pollutants, their effect on vegetation and the dynamics of their occurrence in the ecosystems. Most of my work has been related to ground level-ozone, covering its deposition, effects on plants and distribution in the landscape near the Earth surface. I also conducted several investigations of the effect of elevated carbon dioxide on vegetation. Crops have been the focus of my experimental work with plants, including growth, senescence and yield quality aspects. More recently I have also started to work with traffic related air pollutants such as nitrogen oxides and particles in the urban environment including the potential effect of vegetation to improve the urban environment. I also participate in research on the effects of climate and climate change on air pollution exposure.

Mats Räntfors, Research Engineer

richard dean anderson (carpefactum)

Mobile phone:
Fax: +46 (0)31 786 2560
Information about my work is coming soon!

Lasse Tarvainen, Researcher




My research focuses on understanding the factors and processes controlling the gas exchange and resource use efficiency of boreal tree species. Within this broad topic I’m specifically interested in: i) the influence of nutrient availability and temperature on the foliar gas exchange capacity and the long-term net carbon uptake, as well as the within-canopy variation in these variables, ii) the role of stems on tree-scale carbon dynamics, including carbon transport in the xylem and corticular refixation of respired CO2, and iii) using modelling to investigate the causes behind among species differences in growth rates under similar environmental conditions.

Johan Uddling, Associate Professor

Tel: 031-786 3757
Fax: 031-786 2560

My main research interest is to understand and predict how land plants respond to and interact with the atmosphere under different environmental conditions. In particular, I am specialised on the processes that control plant water use and productivity, such as the regulation of stomata (small pores in the leaf surface) and photosynthesis. Plant responses are studied experimentally as well as by meta-analysis and different types of modelling. Field experiments in Sweden and abroad (Europe, USA, Rwanda, Australia) investigate the impacts of changes in atmospheric composition (CO2, ground-level ozone, nitrogen deposition) and climate (temperature, precipitation) on land plants and ecosystem processes. Meta-analyses of literature data aim to elucidate patterns in how different types of plants and ecosystems respond, thereby informing ecosystem models used to predict biosphere–atmosphere interactions in a changing environment.

Publications (see also

Göran Wallin, Lecturer

Tel: 031-786 26 20
Fax: 031-786 2560

Main teaching areas are plant ecophysiology, climate change, air pollutants, environmental impact analysis and general environmental sciences. My research is focused on effects of climate and air pollutants on plant ecosystems. Studies are made on interaction between vegetation, soil and atmosphere. The main topic is exchange of carbon and water between these systems that are investigated by using gas exchange techniques, biomass measurements, elementary analysis, and carbohydrate analysis. The focus is on boreal coniferous forests, but studies are also made on agricultural corps, deciduous trees as well as forests in the tropics. The main objectives are how the exchange of carbon dioxide is i) effected by climate and air pollutants; ii) can be up-scaled from leaf and shoots to tree and ecosystem levels.

Current projects

1. Scaling of CO2 exchange in boreal Norway spruce from shoot to tree and ecosystem.