Abstract: For comprehensive understand the damage status and invasive dynamics of Mikania micrantha in Hainan island, and provide scientific basis for effective prevention and control on it, invasion of M. micrantha in Hainan island were investigated, the invasion dynamics were analyzed, and its distribution was predicted. Since the first appearance in Haikou and Wenchang city in 2003, M. micrantha has invaded into more than 10 cities in Hainan island after a few years. It competed with the local species for resources, influence the agriculture and forestry production. For its strong reproductive capacity, rapid growth, good adaptability and other characteristics, it has the potential ability to spread overall of Hainan island by forecast. Therefore, we must adopt comprehensive method of prevention and control, and effectively reduce the invasion and losses caused by it.

Key words: Hainan island, alien invasive plant, Mikania micrantha, invasive dynamic

摘要： 为全面了解薇甘菊在海南的危害现状与入侵动态，提供有效防治的科学依据，对海南全岛薇甘菊入侵现状进行了调查，分析其入侵动态，并对其分布区进行预测。结果表明，自2003年在海口、文昌首次发现以来，薇甘菊已侵入到海南10余个市县，由于其繁殖力强、生长迅速、适应性好，与本地植物进行强烈的资源竞争，对本地农林业生产已构成一定危害，而且有向整个海南岛扩散蔓延的趋势。因此，必须引起高度重视，采取综合防治，有效减少薇甘菊大面积入侵造成的危害和损失。

关键词: 海南岛, 外来入侵植物, 薇甘菊, 入侵动态