Relation of α-diversity in plant community with population abundance of Myospalax aspalax in clipping ground of meadow steppe

The experiment with three fixed quadrates (50 m×20 m) was conducted to investigate the relationships between α diversity of plant community and the number of soil mound of Myospalax aspalax in the natural clipping ground in Baiyinkulun pasture, Xilinguole, Inner Mongolia. We investigated the plant community diversity and the population abundance of M. aspalax ranged from 2012 to 2014. The plant community diversity included Margalef index, Shannon-Wiener index and Pielou index. The population abundance was represented by the number of new soil mound of M. aspalax. The results showed that, 1) The movement of M. aspalax had no significant influence on plant community in the research area (P>0.05), and the influence of plant community diversity on M. aspalax was higher than that of M. aspalax on plant community diversity; 2) M. aspalax population abundance had the strongest effect on evenness index of plant community, while the plant species richness index had the strongest correlation with M. aspalax population abundance.