Per Erik Karlsson
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Profile Information

Institution / Company
Swedish Environmental Research Institute
Function / Job Title
SEnior scientist
Website
http://www.ivl.se
Phone
+46 31 7256207
Mobil
+46 31 7256207
Post Address
Box 530 21 400 14 Göteborg

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. 

    Fig1

 

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.

www.krondroppsnatet.ivl.se

    Fig2

    

 

”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.

 

    Fig3

 

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.

    Fig4

 

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