中文摘要：

为了解长春地区入侵植物分布规律及其影响因子,对长春地区入侵植物种类组成和植物区系进行了研究。结果表明：长春地区共有外来入侵植物85种,隶属于26科64属,其中4种为有害检疫杂草;菊科、苋科、禾本科、豆科和茄科构成了长春市入侵植物的主体,其中以菊科（18种）为最多,占总种数的21.18%;草本植物共81种,占95.29%,说明草本植物比木本植物对长春地区更具有入侵性;长春地区入侵植物区系成分复杂,入侵植物科的区系类型主要为世界分布;入侵属的分布区系类型是世界分布占优势,其次为北温带和泛热带分布。根据入侵现状,本文对长春地区防范外来植物入侵提出了建议。

英文摘要：

In order to understand the distribution patterns and their influence factors of invasive plants, the species composition and flora of invasive plants in Changchun City were analyzed. A total of 85 species of alien invasive plants, which belong to 64 genera and 26 families, are identified and recorded in Changchun, with 4 harmful quarantine weeds among the invasive plants. Alien invasive species are mainly composed of Compositae, Amaranthaceae, Gramineae, Leguminosae and Solanaceae. Among them, Compositae has 18 species, occupying 21.18% of the total invasive species. Herbaceous plants have 81 species, occupies 95.29% of the total, indicating that herbaceous plants are more invasive than woody plants. Flora analysis showed that the floristic types of invasive plants in Changchun are mainly in the family of world distribution, and are in mainly the genus of world distribution, followed by the genera of North temperate and pantropic distributions. Accordingly, relevant measures and advice are made for preventing invasion of exotic plants in Changchun.