QIAN Na, JIA Zi-jin, Namuhan, SONG Yan-tao, Wuyunna
Journal of Dalian Minzu University.
2023, 25(5):
389-394.
Through literature review and field survey, statistical analysis of plant species, families, life types, zonal distribution and functional group classification of Hulunbuir grassland was conducted, and temporal changes in community characteristics were analysed.The results find thatthere are 117 plant species, 27 families, 81 genera, mainly perennial miscellaneous grasses and grasses,and 21 plant communities, including 10 typical grassland types and 11 meadow grassland types.The flora composition is dominated by the Daurian-Mongolian component. Among the plant functional groups, water ecotypes are mainly arid and medium-arid, dormant types are mainly ground-budding and cryptobudding plants, and living types are mainly perennial herbs, and medicinal plants and forage plants are in the majority. Compared to 30 years ago, the aboveground biomass, numbers of species, height and cover of the Hulunbuir grassland plant community have all decreased to varying degrees.The research results show that Hulunbuir grassland is rich in plant resources, but the grassland has undergone substantial degradation in the last 30 years, and it is recommended that the survey and protection of the plant resources of Hulunbuir grassland should be strengthened.