西藏大学校园维管植物多样性构成与分析

Composition and Analysis of Vascular Plant Diversity on the Tibetan University Campus

为了解西藏大学校园植物的种类组成和植物入侵情况,对校内植物资源进行拉网式的全面调查。结果表明:校园内维管植物共有68科207属298种,包括蕨类植物3科4属4种、裸子植物3科5属6种、被子植物62科198属288种;校园内共有栽培植物74种和野生植物224种,分别包含栽培植物和野生植物8种和66种、178种和46种;校园内共调查记录到40种外来入侵植物,其中33种为野生自然入侵,有7种为园林绿化引入,含入侵植物最多的科为菊科(Asteraceae)和豆科(Fabaceae)。总体来说,西藏大学校园植物多样性较为丰富,外来入侵植物繁多,为了突出地域特色及更好地发挥景观效果和生态效益,建议加强土著园林植物的引种栽培。

In order to understand the species composition of plants and plant invasions on the campus of Tibet University,a comprehensive survey of plant resources on campus was conducted in a dragnet manner.The results showed that there were 298 species of vascular plants belonging to 207 genera and 68 families in the campus,including 4 species of 4 genera and 3 families of ferns,6 species of 5 genera and 3 families of gymnosperms and 288 species of 198 genera and 62 families of angiosperms.There were 74 cultivated plants and 224 wild plants on the campus,including 8 indigenous plants and 66 exotic plants,178 and 46 species,respectively.A total of 40 alien invasive plants were recorded in the campus,of which 33 were wild natural invasions,and 7 were introduced into landscaping,the families with the most invasive plants were Asteraceae and Fabaceae.In general,the plant diversity of Tibet University campus was rich,and there were many invasive plants.In order to highlight the regional characteristics and better play the landscape effect and ecological benefits,it was suggested to strengthen the introduction and cultivation of indigenous garden plants.