Abstract:The rodent damage by plateau zokor in the process of alpine meadow grazing is a key problem in its utilization and management. Grazing is one of the most important ways of using grassland. The grazing system is used as a utilization system in grazing management. It regulates the use of livestock in the time and space of grazing land, and adjusts the grazing intensity and grazing frequency to balance vegetation grow and livestock. A reasonable grazing system can improve the diversity of grassland plant communities and the stability of grassland ecosystems, and is of great significance for promoting the healthy development and sustainable use of grassland. Plateau zokor is one of the dominant mounds of alpine grassland on the Qinghai-Tibet Plateau. It mainly feeds 3-20 cm of plant roots and stems below the surface. Excavation and hill-building activities of plateau zokor is one of the important driving factors for grassland degradation. The zokor mound is one of the important ways to affect grassland. It is mainly reflected in the coverage of grassland original vegetation, the reduction of species diversity in the community and affecting the productivity of grassland vegetation and the composition of aboveground vegetation. Vegetation community succession of zokor mounds under different grazing management models can provide important basis for grassland management. To analyze the effects of different grazing management models on the vegetation community characteristics and biomass of the rodent mound, four different grazing management models were selected in this study: rotational grazing (RG), growing season grazing (GSG), continuous grazing (CG) and prohibition grazing (PG), with different ages of zokor mounds in each model including one-year (ZM1), two-year (ZM2), three-year (ZM3), multi-year (ZMM) zokor mounds, and control meadow (CM). The results showed that under PG and GSG, the vegetation height and aboveground biomass of zokor mounds in all ages were higher than those of RG and CG. The Shannon-Werner index of ZM1 and ZM2 species under RG and GSG was higher than the species of control meadow. The results of principal component analysis (PCA) showed that aboveground biomass and species richness under RG, while aboveground biomass, coverage, Shannon-Wiener diversity index, and uniformity under PG were important factors of vegetation community succession on zokor mounds. Species richness and important value under CG and Shannon-Wiener diversity index, coverage and height under GSG were critical indicators affecting the vegetation community succession of zokor mounds. In conclusion, different grazing modes have different effects on vegetation community succession of zokor mounds. It can be effectively restored under PG and GSG.