The aim of the present study was to determine changes in in the nature of plant communities and to determine general trends in environmental transformations along the middle Vistula valley during the last 25 years. The area studied encompasses part of the floodplain within the borders of Łomianki commune, a suburban district of Warsaw. The study was based on the analysis of two maps, one compiled by Solon in 1985, and the second by Matuszkiewicz and Kowalska in 2009. Both maps were based on field study, aerial photographs and topographical maps at a scale of 1:10000. The second map was prepared at the request of the municipality of Łomianki as part of the study titled The Landscape and Flora of Łomianki Commune. Cartographical analysis was carried using the ArcGIS 9.3 software package, which proved useful in comparing the vegetation of both time periods and identifying changes in plant communities while presenting these changes in cartographical form.
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