摘要
植物区系研究对于揭示一定区域的植物起源与演化机制具有重要意义,也可为植物多样性保护和植物资源利用提供科学依据.本研究对内蒙古地区灌木植物区系的组成和地理分布特征进行了统计分析,研究结果表明,内蒙古地区有灌木植物39科116属345种;其生活型有灌木、半灌木等,水分生态型有湿生灌木、中生灌木、旱生灌木等.该地区植物区系地理成分复杂,其中植物科以世界广布为主,属则以温带分布为主,分别占48.7%、20.9%;受内蒙古地区的地理位置和温带气候环境的影响,其灌木植物区系具有多元起源的特点.
The study on flora is of great significance to reveal the origin and evolution mechanism of plants in a region. It can provide scientific basis for the protection of plant diversity and the utilization of plant resources. The composition and geographical distribution of shrub flora in Inner Mongolia were analyzed in this paper. The results showed that there were 345 species of shrub plants belonging to 116 genera and 39 families in Inner Mongolia. The life forms of plants were divided into shrubs and semi-shrubs, and the water ecotypes were wet shrubs, mesophytic shrubs and xerophytic shrubs. The floristic geographic components of shrub plants in Inner Mongolia was complex, in which the cosmopolitan element in plant families and the temperate elements in plant genus was predominant in the flora of shrub plants, accounting for 48.7% and 20.9% respectively. The shrub flora in Inner Mongolia has the characteristics of multiple origins, which is closely related to the geographical location and temperate climate environment in Inner Mongolia.
引文
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