薛公岭自然保护区种子植物区系研究

Floristic Characteristics of Seed Plants in Xuegongling Nature Reserve,Shanxi

山西薛公岭省级自然保护区共有种子植物74科352属769种。种子植物属的区系分布类型较为丰富,其中,温带分布成分占绝对优势(温带分布成分共241属,占总属数的79.82%)。种的区系分布类型中,以中国特有分布成分占绝对优势(中国特有分布成分共291种,占总种数的38.14%)。对属、种区系成分与植被关系的分析表明,薛公岭自然保护区种子植物具有暖温带落叶阔叶林地带性区系成分的特点。在薛公岭自然保护区主要植被类型的建群种和优势种组成中,中国特有成分占明显优势。薛公岭自然保护区有国家二级保护植物1种——野大豆,有山西省重点保护植物党参、文冠果、刺五加、山核桃。

There were 769 species of seed plants,belonged to 352 genera and 85 families in Xuegongling nature reserve,among which temperate distribution compositions made significant dominant. It had 249 genera and made 79. 82% in the total genera（ excluding cosmopolitan）. Moreover,among the species floristic composition,291 species being endemic to China was the largest among all areal-types of the species and made 38. 14% in the total species（ excluding cosmopolitan）.Based on the relationship between the floristic characteristics and the constructive species in Xuegongling nature reserve,it suggested that the flora had some typical characteristics of warm-temperate deciduous broad-leaved forest in this reserve,in which the species being endemic to China were the most constructive and dominant compositions of the vegetation types.Moreover,there was 1 species of China national protected II plant,Glycine soja,and there were 3 species of Shanxi Provincial key protected plant,Juglas mandshurica,Xanthoceras sorbifolium and Codonopsis pilosula.