梧州市外来入侵植物调查研究

通过实地调查与文献查询相结合的方法，确认分析梧州市外来入侵植物种类、性状、起源地、传入途径和危害程度，结果表明：梧州市目前共有入侵植物27种，隶属于14科25属，其中以菊科植物种类最多，占总种数29．63％；草本植物20种占绝对优势，占总种数74．07％；24种起源地为美洲，占总种数88．89％；有意引种数量比例超过总种数一半；危害程度达到严重和较严重比例不高，少于总种数的1／4。目前梧州市入侵植物尚未引发严重的生态系统破坏问题，但存在较多潜在的生态安全隐患。最后对梧州市外来入侵植物的管理提出建议。

Study on Alien Invasive Plants in Wuzhou City

By the method of combining field investigation and literature review,the species,traits,origin,invasive ways,and damage degree of the alien invasive plants in Wuzhou city were analyzed.the results showed that there were 27 invasive alien plants belonging to 14 families and 25 genera,among which the most specie was compositae accounting for 29.63%(27 species),20 species were herbs amounting for 74.07%,24 species were from America accounting for 88.98%,more than half of plants were intentional introduction,and the most harmful plants and the more harmful ones were less than 1/4 of total species.Serious damages to the ecosystem of Wuzhou caused by alien invasive plants haven ’t been found,but there were still potential ecological security hidden troubles.The suggestions were put forward for the management of the alien invasive plants in Wuzhou.