湖南省4种新记录外来植物及其入侵性分析  

Four Newly Recorded Invasive Plants in Hunan Province and Analyses on Their Invasiveness

作　　者：刘雷[1] 段林东[2] 周建成[3] 肖顺勇[3] 吴尧晶 朱晓文[4] 刘应迪[1] 刘克明[1] 

机构地区：[1]湖南师范大学生命科学学院,中国湖南长沙410081 [2]邵阳学院生物与化学工程系,中国湖南邵阳422000 [3]湖南省农业厅,中国湖南长沙410005 [4]双峰县第一中学,中国湖南娄底417700

出　　处：《生命科学研究》2017年第1期31-34,共4页Life Science Research

基　　金：国家自然科学基金资助项目(30470130);国家科技基础性研究专项(2013FY111500);湖南省外来入侵生物调查[湘财农指(2014)91号];绿狐尾藻等3种外来物种的风险评估[湘财农指(2015)56号];湖南省农业野生植物资源调查(湖南省农业厅);湖南省生态学重点学科建设项目(0713)

摘　　要：报道了4种湖南新记录外来植物。它们是豆瓣菜(Nasturtium officinale R.Br.)、小花山桃草(Gaura parviflora Dougl.ex Lehm.)、粉绿狐尾藻(Myriophyllum aquaticum Verdcourt)和再力花(Thalia dealbata Fraser)。其中,小花山桃草为湖南新记录外来入侵植物,其余3种为湖南潜在的外来入侵植物。文中介绍了他们的生长习性、生物学特征,特别是繁殖特性,并通过分析其入侵性和扩散趋势,提出了相应的管理策略。Four new invasive species from Hunan province were reported. They were Nasturtium officinale R. Br., Gaura parviflora Dougl. ex Lehm., Myriophyllum aquaticum Verdcourt and Thalia dealbata Fraser. Gaura parviflora Dougl. ex Lehm. was identified as a new record in invasive plants in Hunan province. The other three species were potentially invasive plants in the province. Furthermore, growth habit and biological characteristics, especially the propagation properties, of the four species were described. And suggestions for managing these invasive species were given based on analysis of their invasiveness and expansion trends.

关 键 词：外来植物 新记录 入侵性 湖南省 

分 类 号：Q948[生物学—植物学]