Abstract:

In order to establish a long-term monitoring mechanism of exotic plants in Songshan Nature Reserve, the author conducted this stud, through the survey and the analysis of distribution and relative coverage of alien invasive plants in Songshan Nature Reserve, the results showed that 23 species of alien invasive plants were found, belonging to 12 families and 17 generas. Among them marijuana (Cannabis sativa), redroot amaranth (Amaranthus retroflexus), day lily (Hemerocallis fulva), acacia (Robinia pseudoacacia) and scarlet runner bean (Phaseolus coccineus) were more common. The road construction was the first factor, which influenced and promoted the distribution of alien plants. The next factor was the aspect. Research showed that the alien species population scale was not big and the adverse impact on the local ecological system was not obvious.