Abstract

We used the literature, field investigations, specimen records and taxonomic research to categorize 515 alien invasive plant species from 72 families and 285 genera reported from China according to their biological and ecological characters, extent of spread within China, and amount of damage caused. Each species was put into one of 5 categories: malignant invasion (34 species), serious invasion (69 species), local invasion (85 species), general invasion (80 species), and species requiring further observation (247 species). According to our analyses of geographic distributional patterns, Chinese alien invasive plants were highly con668 生 物 多 样 性 Biodiversity Science 第 22 卷 centrated in the southwestern and eastern coastal provinces of China, and were rapidly spreading to inland China. These categories and distributional patterns of alien invasive plants could help to assess and control their invasive risk. Our results provide baseline information on Chinese alien invasive plants; and, at the same time, we put forward preliminary suggestions for further study, public education and the management of the important alien invasive plants in China.

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