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外来植物入侵己经成为一个主要的全球性环境问题,造成了严重的经济和生态破坏.中国区域内部分地区己有关于严重入侵情况的报道,但是大多是小尺度上的研究,全国范围天然林中的外来植物入侵情况仍不清楚.本文基于全国天然林的3573个样方数据,绘制了外来木本植物入侵在我国各地天然林中的空间分布格局,探究了可能的环境和社会经济控制因素.研究结果显示,只有271个样方被外来木本植物入侵,占样方总数的7.58％;在所有调查的2825种木本植物中,只有5个外来物种(占比0.177％).人类活动和气候因素都对入侵格局产生影响.由于我国天然林多位于偏远山区,人为干扰较轻,外来木本植物入侵的报道少于北美森林和欧洲林地.然而,随着交通运输的发展和山区经济活动的增加,在不久的将来可能会有更多.因此,需要积极的管理和政策制定来防止或减缓入侵进程,降低人类活动的干扰,监测外来物种的入侵情况并及时做出应对.“,”Aims Alien plant invasion has become a major global environmental issue,causing severe economic and ecological damages.Severe invasions have been reported in some regions of China.However,most studies have been conducted at local and provincial levels,and the overall degree of invasion in natural forests across China remains unclear.Here,we explored the biogeographic patterns and their environmental and socioeconomic controls of the invaded alien woody plants in natural forests across the country.Methods We compiled the data of 3573 natural forest plots across the mainland China and mapped spatial distribution of alien woody plant invasion.We also used logistic regression models to identify the key socioeconomic and environmental factors that were associated with the observed invasion patterns.Important Findings We found that only 271 plots among 3573 natural forest plots were invaded by alien woody plants,accounting for 7.58％of all plots.Among all 2825 woody plant species across all plots surveyed,only 5 alien species(0.177％)were found.Both human activities and climate factors were related to the observed invasion patterns.Since China\'s natural forests are mostly located in remote mountainous areas with limited human disturbance,alien woody plant invasions are less than those reported in North America and Europe.However,with the development of transportation and increased economic activities in mountainous areas,more invasions by alien plants may be expected in the future.Therefore,proactive management and policy making are desired to prevent or slow down the invasion processes.