Per Erik Karlsson
Education and academic exams. Biology. Ph D in Plant Physiology. Appointed Professor in Plant Physiology, Air Pollution Impacts on Plants, University of Gothenburg, 2013.
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.
Examples of recent activities:
Experimental exposure of plants in open-top chambers to different levels of air pollutants, such as ozone. A fan will circulate air into the chamber. This air can be filtered with charcoal or added extra levels of e.g. ozone.
Measurements of deposition of air pollutants to forests, e.g. sulphur and nitrogen, within the Swedish Throughfall Monitoring network. Deposition measurements are performed at approx. 70 different forested sites across Sweden. In addition air pollution levels are monitored as well as the chemistry of the soil water at 50 cm depths. These measurements have been operated since 1985.
”Carbon footprints” for forest based products. The ”carbon footprint” is in principle a lifecycle analysis of a product, from the cradle to the grave, focused on greenhouse gas emissions. In these assessments, the forest carbon stock changes are included which could be considered to be connected with the product. These assessments are generally performed as assignments from different forest industries, in Sweden, in Europe and in Indonesia.
Monitoring of the meteorology close to the ground. A measurements system has been established that can be placed at different positions in the landscape (electricity needed). It measures on an hourly basis ozone concentrations, air temperature and humidity, radiation, wind speed and direction and temperature difference between two heights above ground.