Staff

Åslög Dahl, Researcher

Åslög
Phone: +46 (0)31-786 2664
Mobile phone: +46 (0)707-55 69 62
E-mail: aslog.dahl@bioenv.gu.se

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).


Hongxing He, Researcher

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Phone: +46 (0)31-7862611

E-mail: hongxing.he@bioenv.gu.se

My main research interest is biogeochemical cycle in terrestrial ecosystem and its interactions between atmosphere and aquatic ecosystem. I am specialized in developing and applying process-oriented models to study the carbon and nitrogen interactions within soil-plant-atmosphere system. Most of my work focus on greenhouse gas exchange and nutrient leaching, their regulating mechanisms, and responses to global change and human management. Especially, I focus on the plant-ectomycorrhizal interactions for nutrients and carbon exchange, and have recently developed CoupModel to explicitly simulate the ectomycorrhizal processes. Currently, I am working with Annemieke Gärdenäs on including the phosphorus cycle into the CoupModel description in order to improve understanding of nitrogen and phosphorous interactions for losses of nutrients from terrestrial ecosystems. I am also interested in upscaling ecosystem model into catchment or regional scale that can improve our current predictions of the ecosystem response to climate, management and global change.

Previously I worked as a post-doc in a Formas project “drained peat soils, development of specific greenhouse gas emission factors-aimed for mitigation and policy”. In 2016, I defended my PhD thesis named “Land use GHG emissions and mitigation options, simulated by CoupModel”. The main conclusion is drained organic soils are hotspots for greenhouse gas emissions and rewetting can be a potential mitigation option.


Annemieke Gärdenäs, Lecturer

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Phone:
+46 (0)31-786 6663
E-mail
: annemieke.gardenas@bioenv.gu.se

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. For more information and publications see:

https://bioenv.gu.se/english/staff?languageId=100001&userId=xgaann#tabContentAnchor1


Per-Erik Karlsson, Adjunt Professor

 PerErik

Phone: +46 (0)31-786 6663
E-mail: pererik.karlsson@ivl.se

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.


Jenny Klingberg, Researcher (Gothenburg Botanical Garden)

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Phone:
+46 (0)703-529772
E-mail: jenny.klingberg@vgregion.se

My research focus on how urban greenery contribute to ecosystem services, mainly air quality improvements. Starting January 2018 I will work in a FORMAS-funded project called “Clean the air with plants – can PAH exposure be reduced with urban vegetation?” led by Håkan Pleijel. In the project we will evaluate the role of vegetation in scavenging PAHs (Polycyclic Aromatic Hydrocarbons) as well as NO2 from the atmosphere. There is a proven link between exposure to air pollution and an increased disease risk. Particle-bound PAHs are suspected to account for a substantial part of the effects. Trees can serve as sinks for air pollutants, thereby cleaning the air. This effect has been demonstrated, but is so far not well quantified. Within the project we will perform field measurements in Gothenburg to compare differences in PAH accumulation of ten different tree species and study the air pollution reduction by different types of forests.

Previously I have worked as a post-doc in the project “Valuation of ecosystem services from urban greenery” (for more information see https://www.mistraurbanfutures.org/en/project/valuation-ecosystem-services-provided-urban-greenery).  In 2011 I defended my PhD-thesis named “The influence of climate on ozone risk for vegetation” https://gupea.ub.gu.se/handle/2077/25120.

 


Ulf Molau, Professor

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Phone: +46 (0)31-786 2665
Mobile phone: +46 (0)708-790533
E-mail: ulf.molau@bioenv.gu.se

Teaching in general and terrestrial ecology, plant ecology, statistics, global change. Research related to arctic and alpine ecology, climate impacts on tundra ecosystems, indicator ecosystems, International Tundra Experiment (ITEX), landscape ecology, cliff ecology, tropical botany. In October 2010 I was a part of the Swedish delegation in the UN conference on biological diversity in Nagoya, Japan. In the last years he has had a several missions for the Swedish government in international negotiations on biological diversity and climate change.


Håkan Pleijel, Professor

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Phone: +46 (0)31-786 2532
E-mail: hakan.pleijel@bioenv.gu.se

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)
E-mail: mats.rantfors@bioenv.gu.se
Information about my work is coming soon!


Lasse Tarvainen, Researcher

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E-mail: lasse.tarvainen@bioenv.gu.se

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, Professor

 Johan
Phone: +46 (0)31-786 3757
E-mail: johan.uddling@bioenv.gu.se

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.

Link to Publications.


Göran Wallin, Lecturer

Göran
Phone: +46 (0)31-786 2620
E-mail: goran.wallin@bioenv.gu.se

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.

 

 

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