六盘水乡土观赏种子植物区系及其园林绿化应用

Flora of Local Seed Ornamentals in Liupanshui Area and Their Utilization in Garden Virescence

根据调查统计,六盘水有可供观赏的种子植物110科321属855种。对科和属的区系分析结果:科级水平以热带分布的类型最多,有51科,占总科数的46.36%;而属级水平以温带分布类型占明显优势,共计172属,占总属数的53.58%。综合科和属的区系分布类型表明,六盘水地区乡土植物种类丰富,区系成分复杂多样,分布有许多起源古老的珍稀濒危和特有植物种类,其区系地理表现为较明显的亚热带向温带过渡的类型。并就该区乡土观赏植物资源优势、园林绿化现状及存在的问题进行了分析,提出乡土观赏植物种质资源开发利用对策。

Based on data of the investigation, there are 855 species of seed ormanmental which belong to 321 genera, 110 families. The flora composition of the seed ornamentals were analysed and the result showed as follows： There were 51 families of tropical distribution, which mode up 46.36% of the total families, whose number was the most one. While the statistics of the genera areal types showed that there were 172 genera of temperate distribution, which mode up 53.58% of the total genera and showed preponderance. Comprehensive analysis for the flora composition of the families and the genera presented that the local floristics were very abundance, and the flora composition were complexity and multiplicity. At the same time, there were many rare and endangered and endemic plants of ancient origin. The flora in Liupanshui area had some characteristics of the flora was transitional from the subtropical to the warm temperate zone. Moreover, the resource advantage of local ornamental, the status quo of garden virescence and the problems existent - were analysed. Lastly, the countermeasures about how to exploitate and utilize the germplasm resource of local ornamentals were presented.