Thirty-four alien invasive species (AIS) including 11 species of animals and 23 species of plants in Beijing were numerated in the present paper through field and literature investigations.

• 通过调查研究和查找有关文献资料明确,北京地区外来入侵生物种类有动物11种,植物23种,列出了其主要的分布范围及其危害,讨论了外来入侵生物的防治对策。