云南万峰山自然保护区种子植物区系研究

于2018年应用样地和线路的调查方法，在万峰山做了3次调查。基于野外调查的数据和有关的文献资料，分析了该保护区的种子植物组成特征。结果表明：保护区有野生植物135科573属964种，在科属种组成方面，含1～5种的属占90.77%，表明了其种类的多样性程度比较高；科属种比例与香格里拉县相差较大，与哀牢山相似。在区系类型组成方面，在科一级水平上，科的热带成分占48.89%，其中泛热带成分占32.59%；在属一级水平上，属的热带成分占50.44%，温带成分占41.53%，温带成分略低于热带成分；表现出明显的从热带向温带过渡的类型。该区有2个东亚特有科，13个中国特有属，其特有性与滇中、滇西北其他地区相比明显偏低。与其他地区相比，万峰山的植物区系类型与茂兰、哀牢山类似，与广西、香格里拉相差较大。

A Study on the Flora of Seed Plants in Wanfeng Mountain Nature Reserve

In this study, 3 investigations on species resources were carried out in Wanfeng Mountain Nature Reserve in 2018 by means of typical sampling plots and typical sampling transect lines. Based on the field investigation data and related references, the flora characteristics of seed plants in the nature reserve were analyzed in this paper. Results showed that there were 135 families, 573 genera, 964 species of seed plants in Wanfeng Mountain Nature Reserve, proportions of families, genus and species were different from Xianggelila County, but similar to the Ailao Mountain National Nature Reserve. With 90.77% of genera contained 1-5 species, that meant highly diversity at the level of species. At the family level, the tropic elements accounted for the highest proportion of 48.89% with 32.59% of the pantropic elements in Wanfeng Mountain. At the genus level, the temperate element was 41.53% only next to the percentage of 50.44% of tropic elements, showed clearly the flora transition from tropical to temperate. On the endemic element, there were only 2 endemic families to East Asian and 13 endemic genera to China in the nature reserve. However, endemism of the nature reserve was obviously lower compared with central and northwest Yunnan. Comparing with other compared areas, the flora of Wanfeng Mountain Nature Reserve was similar to Maolan Nature Reserve and Ailao Mountain National Nature Reserve, and was quite different from Guangxi Province and Xianggelila County.