广西防城港市外来植物调查

Investigation on Alien Plants in Fangchenggang,Guangxi

为了解防城港市外来植物现状,在野外调查的基础上,整理和查阅相关文献和网站,确定防城港市外来植物种类,并对其进行分析。结果表明,防城港市共有外来植物48科141属204种,以菊科(Asteraceae)(33属41种)、豆科(Fabaceae)(19属34种)和大戟科(Euphorbiaceae)(4属12种)为主;来自热带美洲的植物种类最多,共134种,占外来植物总种数的65.69%;生活型以草本植物为主,有138种,占外来植物总种数的67.65%;外来植物多为有意引种,有121种,占外来植物总种数的59.31%。

In order to understand status of alien plants in Fangchenggang,Guangxi,based on field investigation,and arrangement and reference of interrelated literature and websites,alien plant species in Fangchenggang were confirmed and analyzed.Results showed that there were 204 alien plants belonging to 48 families and 141genera in Fangchenggang.Among these species,Asteraceae had 41 species belonging to 33 genera;Fabaceae had 34 species belonging to 19 genera;Euphorbiaceae had 12 species belonging to 4 genera.Most of alien plants came from tropical America with 134 species accounting for 65.69%of total alien plant species.Most of alien plants were herbs with 138 species accounting for 67.65%of total alien plant species.Most of alien plants were deliberately introduced with 121 species accounting for 59.31%of total alien plant species.