InhaltsangabePreface and acknowledgement. Resolution of Ukrainian sponsor and workshop participants 1. Fuzzy regions: theory and applications; J. Verstraete et al.- 2. Mapping the ecotone with fuzzy sets; Ch. Arnot and P. Fisher.- 3. Issues and challenges of incorporating fuzzy sets in ecological modeling; V.B. Robinson.- 4. Reliability of vegetation community information derived using decorana ordination and fuzzy c-means clustering; L. Bastin et al.- 5. A rough set-based approach to handling uncertainty in geographic data classification; P. Jankowski.- 6. Fuzzy models for handling uncertainty in the integration of high resolution remotely sensed data and GIS; J. Schiewe and M. Ehlers.- 7. Incompleteness, error, approximation, and uncertainty: an ontological approach to data quality; A. Frank.- 8. A flexible decision support approach to model ill-defined knowledge in GIS; G. Bordogna et al.- 9. Development of the geoinformation system of the state ecological monitoring; V.B. Mokin.- 10. Mapping type 2 change in fuzzy land cover; P. Fisher and Ch. Arnot.- 11. Indexing implementation for vague spatial regions with R tree and grid files; F.E. Petry et al.- 12. Association rule mining using fuzzy spatial data cubes; A. Yazici.- 13. Interactive objects extraction from remote sensing images; V. Bucha.- 14. Classification of remotely sensed data; S. Kokhan.- 15. Sustainability and environmental security management tools; A. Gorobets.- 16. Remote sensing and GIS application for environmental monitoring and accidents control in Ukraine; D.K. Mozgoviy et al.- 17. ProDec emergency procedure based on fuzzy notions for catchment management; J.W. Owsinski and A. Ziólkowski.