Effect of Bidens frondosa invasion on soil cultivable fungal diversity.
In order to provide the theoretical basis for effective control and prevention in the invasion danger of B. frondosa, the authors used the spread plate method to isolate, separate and preliminarily identify the soil fungi of the selected three sample regions (invaded area, green area and farming area). Results: The amount of soil fungi in invaded area is 1 205 CFU/g, which is 2.24 times of green area and 2.30 times of farming area. 17 genera of fungi are isolated in the three sample regions, dominant groups are Penicillium, Aspergillus, Mucor and Trichoderma. According to the similarity index analysis, the similarity index of soil fungal communities in the three sample regions belongs to very similar level and medium similar level, the diversity of soil fungi is not significant. From the point of view of soil fungi, B. frondosa is more likely to spread to the un-invaded area.