[Objective]Clarifying the response of grassland plant community species diversity characteristics and its influencing factors to grazing disturbance in China is crucial for fully understanding the characteristics and develop-ment trends of grassland community structure.Additionally,also it provides valuable insights into the health of grass-land vegetation growth and system stability.[Method]Utilizing a meta-analysis approach,we integrated and ana-lyzed 28 studies on the effects of grazing on plant community diversity of grasslands in China.[Result]The findings indicated a general reduction in the species diversity of grassland plant communities due to grazing disturbance in China.Specifically,grazing decreased the species diversity of desert steppe and significantly increased the species di-versity of meadow steppe.Various grazing intensities and durations had distinct effects on grassland plant community diversity.Moderate grazing positively influenced species diversity,while severe and long-term grazing had negative impacts.Moreover,average annual precipitation exhibited a significant positive impact on plant community species di-versity and evenness indice,explaining 8.70%and 15.24%of the effect value variation,respectively.Annual mean temperature had a significant negative effect on the species diversity index and dominance index,explaining 9.07%and 11.61%of the effect value variation,respectively.Grazing years had negative affected the diversity index and positively influenced the richness index,explaining 2.52%and 25.27%of the variation in effect values,respectively.[Conclusion]In summary,optimizing the grazing management system can effectively enhance the species diversity of grassland plant communities,fostering the healthy and stable development of the grassland ecosystem in China.
维普
万方数据