南宁青秀山珍贵树种展示园景观植物资源多样性调查与分析

Investigation and Analysis of Diversity of Landscape Plant Resources in the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain

了解南宁青秀山珍贵树种展示园植物资源及景观现状,可为后期景观提升提供科学参考。通过实地调查、信息管理系统查询和有关文献查阅的办法,对南宁青秀山珍贵树种展示园植物资源多样性及其景观构成进行了全面调查与分析。结果表明,南宁青秀山珍贵树种展示园共有维管植物125科362属517种,双子叶植物占绝对优势。按生活型、观赏型、生态型可依次分为11、6、3个类别。豆科(Fabaceae)、茶科(Theaceae)、木兰科(Magnoliaceae)、大戟科(Euphorbiaceae)、桃金娘科(Myrtaceae)、姜科(Zingiberaceae)和樟科(Lauraceae)具有较好的观赏特点,并在青秀山珍贵树种展示园中得到了较多应用。青秀山珍贵树种展示园景观特征明显,以常绿植物为主,植物景观集中于园路两侧,但存在植物优势科较少、植物运用不够丰富、观赏型植物种类分布不均和园内次生林占据活动空间等问题。建议增加优势科植物,并适当增加一些观茎、芳香植物、藤本和林下草本药用植物种类,营建多样性的植物景观;提升林内林下空间利用、强化科普研学和基础科研水平,完善相应的社会功能。

To understand the current situation of the plant resources and landscape of the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain and to provide a scientific reference for subsequent landscape improvement,the diversity of plant resources and landscape composition of the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain was investigated and analyzed via field investigations,information management system inquiries,and literature reviews.The re-sults revealed 517 species of vascular plants in 125 families;362 genera among the rare tree species were present in the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain,while dicotyledonous plants were dominant.They can be di-vided into 11,6,and 3 classes according to their life form,ornamental form,and ecotype,respectively.Fabaceae,Theaceae,Magnoliaceae,Euphorbiaceae,Myrtaceae,Zingiberaceae,and Lauraceae have better ornamental characteristics and have been widely used in the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain.The landscape features of the Rare Tree Species Exhibition Garden of Nanning Qingxiu Mountain are distinct and include evergreen plants.The plant landscape is concentrated on both sides of the garden road.However,there are several problems,such as fewer dominant plant families,insufficient use of plants,uneven distribution of ornamental plant species,and secondary forests occupying activity space in the garden.Increasing the number of dominant family plants and appropriately adding some species of stem,aromatic,vine,and understory herbs to the landscape of diverse plants are suggested.The utilization of understory space should be improved,the level of popular science research and basic scientific research should be strengthened,and the corresponding social func-tions should be improved.