Abstract
To clarify the fact that vertical movements of vegetation zone had occurred for twenty and several years, species composition of plant communities was surveyed on the artificial slopes along the mountain roads at the two periods. 18 species had moved upward for about twenty five years. Average annual temperature differences between the two periods 1951—1980 and 1971—2000 in research sites were in the range from -0.05 to 0.66 °C. This result indicated that the climate in study sites would had been warmer. There was the negative correlation between average annual temperature and score on axis 1 in correspondence analysis. This result assumed that regional temperature had much affect on the distribution of plant species in mountain area.
