贵州野钟黑叶猴自然保护区种子植物区系研究

Analysis on Spermatophyte Flora from Yezhong Nature Reserve in Guizhou Province

野钟黑叶猴自然保护区属市级自然保护区,以保护国家一级保护动物黑叶猴及其栖息环境为主要保护对象。据统计有种子植物132科371属551种。科级区系成分中,热带性质的科占66.04%,温带性质的科占33.96%;属的区系分析结果有13个分布区类型19个变型。热带分布属共171属,占总属数的51.81%,温带分布属共计158属,占总属数的47.88%。表明野钟黑叶猴自然保护区种子植物区系的亚热带性质。植物区系起源古老,古老区系成分较多,分布有白垩纪和第三纪的古老成分。本区内适钙植物较多,在本区石灰岩植物群落中占据着显赫地位。

Yezhong Nature Reserve is situated in Liupanshui, and it is an area of level1 Nature Reserve which takes the species of Presbytis francoisi and its habitation as protective object. The spermatophytes in Yezhong Nature Reserve are very rich. There are 551 species (including subspecies) of spermatophytes, which belong to 132 families and 371 genera. At family level, the proportion of the tropic type is 66.04%, and the temperate type is 33.96%. At genus level, there are 13 area types and 19 var. types. There are 171 tropic types of genera and the proportion is 51.81 %. There are 158 temperate types and the proportion is 47.88%. The flora of spermatophytes in Yezhong Nature Reserve shows clear semitropical characteristics. It is concluded that this region has ancient flora and its ancient flora has rich species, and distribute many ancient elements of Cretaceous and Tertiary. In this region, there are lots of plants which are addicted to Calcium and they play an important role in the plant community of calcareous rock.