【摘要】 为了解大围山国家森林公园外来入侵植物的分布情况及特征，通过实地考察结合文献资料、网络资源和走访调查的方式确定了大围山国家森林公园外来入侵植物的相关情况，并对其进行风险评估和危害等级划分。结果表明：大围山国家森林公园现有外来入侵植物共24种（含变种），隶属于9科20属，其中，菊科（13种）为入侵最为严重的科，占大围山国家森林公园外来入侵植物总种数的54.16%；入侵植物中以一年生或二年生草本植物居多（19种），占总数的79.17%；入侵植物主要来源于美洲，共18种，占总种数的70.83%；从入侵等级看，外来入侵植物中恶性入侵种（1级）10种，严重入侵种（2级）6种，一般入侵种（4级）4种，有待观察种（5级）4种。大围山国家森林公园的外来入侵植物种类日渐繁多且传播途径多样，这与大围山独特的地理位置以及日趋频繁的人类活动息息相关，应当加强监管，根据情况及时防范，并对外来物种采取相应的管控和治理。更多还原

【Abstract】 The distribution status and characteristics of invasive alien plants in Daweishan National Forest Park were studied based on field investigation, literature review, network resources and interview survey, and the hazard levels were evaluated and graded.The results have shown that there are 24 species(including varieties) of alien invasive plants in Daweishan National Forest Park,belonging to 9 families and 20 genera. Among them, Asteraceae(13 species) is the most invasive family, accounting for 54.16% of the total invasive species. Most of the invasive plants are annual or biennial herbs(19 species), accounting for 79.17% of the total.There are 18 species of invasive plants from America, accounting for 70.83% of the total. According to the invasion grade, there are 10malignant invasive species(grade 1), 6 serious invasive species(grade 2), 4 general invasive species(grade 4), and 4 species needing to be observed(grade 5). The species of invasive alien plants in Daweishan National Forest Park are becoming more and more diverse and their transmission routes are diversified, which is closely related to the unique geographical location of Daweishan Mountain and the increasingly frequent human activities. Therefore, it is necessary to strengthen supervision and timely prevention according to the situation, and take corresponding control and management measures on alien species.更多还原