Apart from an overview of the implementation of the Pan-European Intensive Monitoring Programme of Forest Ecosystems up to 2000, this year's report focuses on (i) ozone concentration data and ozone injury symptoms assessed in a test phase, (ii) ground vegetation species composition in view of environmental factors, (iii) carbon pool changes in trees and soil in relation to nitrogen deposition and (iv) long-term impacts of atmospheric deposition on soil and soil solution chemistry by means of dynamic modelling. Major conclusions are:
Ozone measurements and ozone injury impacts
- Measurements of ozone concentration derived by passive sampling, used at the Intensive Monitoring plots, compare very well to those derived by active monitoring.
- Validated ozone injury symptoms could be presented due to the further development of a sensitive species list, photo gallery, flow chart for injury discrimination and microscopic tools. [...]