嘉应学院江北校区外来入侵植物现状及防治对策

Alien Invasive Plants and Their Control Strategies in the Jiangbei Campus of Jiaying University

通过实地调查,结合文献检索,对梅州嘉应学院江北校区外来入侵植物的组成、生活型、原产地、入侵途径、分布区域等进行了分析.结果表明:嘉应学院江北校区主要外来入侵植物有21科37种,其中菊科植物的数量最多,占入侵植物总数的18.9%;生活型以草本植物为主;原产地以美洲为主;入侵途径主要以人为有意或无意引入为主;入侵植物分布种数最多的区域为东区.在分析校园外来入侵植物现状的基础上,提出加强对校园外来入侵植物的防治对策,为美化校园、维护生态环境、保持生物多样性及降低外来入侵植物造成的经济损失提供参考.

The composition, life foms, original districts, invasive routes and distribution area of alien invasive plants in the Jiangbei Campus of Jiaying University were investigated by field survey and literature review. The re-suits showed that 37 species from 21 families of Mien invasive plants are distributed in the Campus. The Astera- ceous plants are the most in number and take up 18.9% of the total species. Herbaceous plant is the dominant life form. Most of the Mien invasive plant species were native to Americas and were introduced intentionMly or uninten-tionally by human beings. The eastern area has the largest number of species of alien invasive plants in the cam- pus. Base on the analysis of current situation of alien invasive plant in the campus, prevention and controlling measures were proposed. Our results provide references for beautifying, preserving ecological environment and maintaining biodiversity of the campus, and reducing financial loss caused by alien invasive plants.