Tolerance of vascular plants to anthropogenic habitats (with special reference to the flora of the environs of Saratov City).

摘要

The aboriginal flora of the main types of anthropogenic habitats in Saratov City and its environs was studied and the data were compared with a complete checklist of vascular plants for the area. The most stress tolerant families of Magnoliophyta were Chenopodiaceae, Polygonaceae, Lamiaceae and Poaceae, and the most susceptible to anthropogenic stresses were Cyperaceae, Ranunculaceae and Caryophyllaceae. Weeds and riverside plants were the main coenoelements of anthropogenic habitats while these habitats were unfavourable for aquatic and forest species. Trees, shrubs and plants with short life cycles were more tolerant than semi-woody plants.