武功山地区种子植物区系研究

Flora of Seed Plants in Wugongshan Region Reserve

通过多次野外调查及资料整理,对武功山地区种子植物科、属、种的组成及区系特征进行了调查分析,为该区植物资源的保护以及植物分区提供理论依据。结果表明:(1)武功山地区共有种子植物166科、814属、2 079种,分别占江西省种子植物科、属、种总数的72.81%、61.11%、50.46%,其中裸子植物有7科、15属、19种,分别占江西裸子植物总数的77.78%、65.21%、54.28%。(2)武功山地区科包含12个分布区类型,热带成分占优势(70科,占57.96%),温带成分丰富(46科,38.65%);属包含14个分布区类型,热带成分略占优势(368属,49.40%),温带成分增加(354属,47.53%);种包含14个分布类型,热带分布性626种(31.04%),温带分布性663种(32.87%),温带成分略占优势;武功山地区植物成分具有热带向温带过渡的特点,并且热带和温带成分相互交融、渗透。(3)武功山地区种子植物具有单种和少种的科属较多,具有起源古老的特点,其中单种属有414属,占总属数的50.86%。中国特有成分有4科、23属、728种。(4)与相邻的15个代表性区系比较表明,武功山地区种类较为丰富,聚类分析表明该区系与黄山、庐山、武夷山、井冈山等地区的关系很密切,与秦岭、西双版纳和高黎贡山的区系关系最疏远。

Based on field studies and reserve scientific literatures,this study has statistics and comparatively intensive analysis on seed plants of Wugongshan region.Results showed:(1)There are2079species including814genera in166families,accounting for72.81%,61.11%and50.46%in family,genera,and species of the seed plants of Jiangxi Province,respectively.Among them,there were7families,15genera and19species of Gymnosperms,accounting for77.78%,65.21%and54.28%of Gymnosperms in Jiangxi Province respectively.(2)There are12area types of familie in the region,the flora in families displayed tropical feature,but the temperate feature is also obvious,for57.96%(including70families)of tropical elements and38.65%(including46families)of temperate elements.There are14area types of genera in the region.The tropical elements have a slight advantage and temperate elements is further developments,for49.40%(including368genrea)of tropical elements and47.53%(including354genera)of temperate elements.There are14area types of species in the region.The temperate elements have a slight advantage,for31.04%(including626species)of tropical elements and32.87%(including663genera)of temperate elements.From the plant distribution in this region,the flora show a tropical transition to the temperate characteristics,and the components of tropical blend with temperate.(3)The flora possesses lots of monotypic and oligotypic genera,with an ancient origin.There are414genrea of monotypic genera,accounting for50.86%of the total.There are728species,23genera,4families endemic to China.(4)Compared with15other regions,and the results showed that the seed plants in Wugongshan region are abundant.Cluster analysis show that the flora of Wugongshan region has the most close relationship with Huangshan Mountain,Lushan Mountain,Wuyi Mountain and Jinggang Mountain,and the most distant from the Qinling Mountain,Xishuangbanna and Gaoligong Mountains.