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EN
The Authors present the results of the multicriterial evaluation in 14 official map services of Capital City of Warsaw. The evaluation has been conducted in 2018 on two levels: in relation to all websites jointly (score according to one criterion) and individual mapping services (evaluation according to three criteria). The obtained results have been compared to previous analyzes of geoportals at various levels, including regional and state-owned. The Warsaw map service falls in a satisfactory manner, achieving a comparable or slightly higher rating than those previously analyzed by other authors.
EN
This study presents the results of examination of the vegetation on the waste landfill of ArcelorMittal-Warszawa steel mill and the furnace waste landfill of Siekierki Power Station, both sites in Warsaw. The presented analyses of the field research contain detailed floristic-phytosociological data as well as botanical and ecological evaluation of the identified plants. The vegetative structures, together with the succession trends of the vegetation cover of two examined landfills, have been shown. Ecological habitat adaptations of plants and their spatial structure have been evaluated. The inventoried flora has been subjected to taxonomic, syntaxonomic and ecological classification. 154 plant species from 48 taxones in the range of families have been identified. Families characterized by the biggest abundance of species were: Compositae, grasses and Fabaceae. More than half of the live forms indentified were hemicryptophytes. The vegetation of two landfills has been dominated by synantrophic communities (Stellarietea mediae, Artemisietea vulgaris, Molinio-Arrhenatheretea), with apophytes being in the largest number. With the use of ecological indicators a broad ecological tolerance of the majority of species toward ecological factors has been observed.
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