1. Introduction

2. A general description of permanent observation plots and programme for forest monitoring in 2001

3. Differences in the state of health of stands

4. Changes in the state of health of stands in the years 1997-2001

5. The chemical composition of oak and beech foliage, a comparison of results from 2001 and 1997

6. The deposition of pollutants over forest land (the second-level POPs)

7. The influence of weather conditions on the health of stands over the last five years

8. Intensity of seeding and the quality of Scots pine seeds on second-level POPs

9. The level of threat to forests posed by the more important species of folivorous insect

10. Mean individual biomass of ground-beetles (Carabidae) in forest ecosystems

11. The level of threat to forests posed by pathogenic fungi

12. Analysis of the relationship between the state of health of forest and factors in the environment in 2001, as well as directions to predicted change

13. Summary and conclusions

14. Bibliography