The work concerns city parks in Poznan and their importance in the structure and landscape of the city. The research included 38 park objects of various origin , size and nature . There were evaluated the uniformity of parks’ distribution within the agglomeration, the shape of the outline of the plan ( the nature of the border line) and their surroundings.

Vegetation succession in front of five retreating glaciers was studied using phytosociological relevés (60) located at different distances between the Little Ice Age (LIA) moraines and the present glacier fronts around Petunia Bay. Approximate dating of succession stages was based on a study of the changing position of glacier fronts in the past approximately 100 years. The described succession corresponds to the uni−directional, non−replacement model of succession. All constituent species, except one, present in the nearby old tundra have colonized the glacier forelands since the end of the LIA. The first species appeared about 5 years after deglaciation. The latest succession stages closely resemble the old tundra.