云南假泽兰属植物及薇甘菊的危害

外来入侵生物对生态系统产生的影响十分巨大，已经成为国家生态安全的严重隐患。自上世纪90年代末期以来，入侵植物薇甘菊（Mikania micrantha H．B．K．）在我国的生态危害引起了社会各界的广泛关注。但是，至今我国所有关于薇甘菊的文献中，均末提及该种在云南的分布。作者通过实地调查和查阅昆明植物研究所的相关标本，确认云南分布有两种假泽兰属植物，即假泽兰（Mikania cordata （Burm．f．）B．L．Robinson）和薇甘菊（M．micrantha），并介绍了薇甘菊在云南西南部德宏州的危害现状。根据薇甘菊的生物学习性，作者预测薇甘菊将进一步在德宏州扩散，还可能入侵到与德宏州气候相似的其他地区，有关政府部门和研究机构对此问题应该给予高度重视。

A Review of Mikania and the Impact of M. micrantha(Asteraceae) in Yunnan

Exotic invasive species have long been known to bring about serious damages to ecosystem, which has imposed great threats to national eco-safety. Since the late 1990s, ecological impacts caused by Mikania micrantha H. B. K., an invasive plant species, have become the focus of different walks of society. No existing literature on M. micrantha, however, relates anything concerning its distribution in Ytmnan Province. Based on field investigations and ,taxonomic study on the specimen collected in Kunming Institute of Botany, the anthers identified two species of Mikania Wild in Ytmnan, namely M. cordata and M. micrantha. The present research also depicts the impacts of M. micrantha in Dehong, a pefecture in Southwestern Ytmnan. Considering the biological features of the species, the author predicts there are possibilities of spreading of the species in Dehong prefecture, and possibly diffusing over other areas with identical climate patterns as Dehong. In the wake of this, it is highly advised that government departments and relative research institutes pay great attention to the problem and take effective measures to deal with situation.