Chemische Untersuchungen der atmosphärischen Deposition

Abstract

Can immission measurements help us to understand forest decline? Detailed analysis of deposition and airborne particulate matter from a study in the region of Zürich shows that contaminants are evenly spread over a relatively large area. The acidity of rain is certainly affected by ammonia emissions from agricultural activities, and these have to be taken into account when discussing acid input into a forest ecosystem. Two important factors influencing the input include interception and gaseous dry deposition, both of which should be measured in future studies.