成都园林入侵植物的调查及区系分析

Survey and Flora Analysis of Invasive Plants of Landscape Garden in Chengdu

本文对成都园林入侵植物的种类组成、起源地、危害程度及分布区类型等进行了研究。结果表明,成都市园林入侵植物总共有25科47属57种,其中园林植物16科30属37种,园林杂草9科17属20种,均以菊科种类最多,分别占该地区园林入侵种的45.95%和40%;从起源上统计入侵园林植物有51.35%、入侵园林杂草有55%皆起源于美洲。区系研究表明,成都市入侵的园林植物主要为热带亚热带分布,世界分布和温带分布较少;但入侵的园林杂草世界分布占绝对优势,其次为热带亚热带分布,少数种类属温带分布,体现了该区从热带亚热带向温带分布过渡的性质。基于此,对该区园林入侵植物提出了相关的防治措施和意见。

In this paper,the composition,origin,distribution and types of damage of invasive plants in the garden plant species in Chengdu were studied.The results showed that the total of invasive plants in Chengdu was 25 families 47 genera and 57 species,of which 16 families 30 genera and 37 species were garden plants,the rest were weeds,the most were species of compositae,which accounted for invasive species in gardens in the region 45.95 % and 40 %.Statistics from the origin of 51.35 % garden plants,55 % weeds originated from the Americas. Flora studies showed that invasive plants in Chengdu were mainly tropical and subtropical distribution;there was less distribution in the world and temperate.However,the distribution of garden weeds dominated the world, followed by tropical and subtropical distribution;few species were temperate,which reflected the area from tropical and subtropical to temperate nature of the transition.Based on this,this paper made relevant prevention measures and advice for invasive plants in the area.