江西省外来入侵植物现状分析

调查研究发现,江西省现有外来入侵植物85种,隶属27个科64个属,且主要集中在菊科、禾本科、豆科和苋科,上述4科总计包括入侵植物50种,占全部种类的58.9%。入侵危害性最强的植物种有22种,占入侵植物总数的25.9%;入侵性较强的植物种有28种,占总数的32.9%,入侵性最弱的有35种,占总数的41.2%。一年生或两年生草本有25种,占总数的45.5%;多年生草本有27种,占总数的49.1%。在地理起源方面,江西省入侵植物多来自于美洲和欧洲。研究结果表明,江西省入侵植物的种类数量和入侵危害性均呈上升趋势。

CURRENT SITUATION ANALYSIS OF INVASIVE PLANT IN JIANGXI PROVINCE

Survey on invasive plants in Jiangxi province was conducted.There were 85 alien invasive plants belonging to 64 genera in 27 families.The plants mainly were included in the following four families,Asteraceae,Gramineae,Leguminosae and Amaranthaceae,with the rate of 58.9% in total invasive plants.The constituent ratio of the strongest invasive plants is 25.9%,32.9% for the stronger invasive plants,and 41.2% for the weaker invasive plants,relative plant species respectively were 22,28 and 35.The numbers of ann...