山东省南四湖湿地外来入侵植物区系分析

Studies on the Flora of Alien Invasive Plant in Wetland of Nansihu Lake

通过野外采集及文献整理,研究了山东南四湖湿地外来入侵植物的种类、来源地、生活型、区系分布类型.结果表明,初步确认该区共有外来入侵植物23科47属54种(包括种下等级),其中双子叶植物19科40属47种,单子叶植物4科7属7种,其中以菊科和豆科种类最多,有9种;草本植物44种,占81.5%;外来入侵植物主要来源于美洲,有28种;从植物区系的总体构成来看,泛热带分布和世界分布成分所占比例较大.

Based on the field investigation and the related literatures,the species,originalplaces,life forms and floristic types of alien invasive plants in Wetland of Nansihu Lake were studied.The results showed that there were 54 species of invasive plants,belonging to 47 genera in 23 families in Wetland of Nansihu Lake,The most abundant family was Compositae and Leguminosae involving 9 respectively.There were 44 species of herbs,amounting to 81.5% of the total species,and 28 species were form America.It also turned out that cosmopolitan and pantropical elements dominated the study area.