【摘要】 贵阳二环林带现有种子植物489种,隶属于107科334属.科级区系成分中,热带性质的占总科数(除世界分布科外)的64.79%,温带性质的科占32.39%,中国特有科占2.82%;属级区系成分中,有15种分布区类型和12种变型,其中热带分布133属,占总属数(除世界分布属外)的44.33%,温带分布共157属,占52.33%,中国特有7属,占2.33%.该区植物区系介于热带与温带之间,属亚热带区系性质.更多还原

【Abstract】 There are 489 species of spermatophytes belonging to 334 genera and 107 families in the Second Ring Forest-belt of Guiyang.At family level,the proportion of the tropic type is 64.79%of the total family(except cosmopolitan family),the temperate type is 32.39%,and Chinese endemic family is 2.82%.At genus level,there are 15 zoning types and 12 variants,in which,the tropical genera is 133,being 44.33% of the total(except cosmopolitan genera).The amount of temperate genera is 157,being 52.33% of the total.The amount of endemic genera in China is 7,being 2.33% of the total.The floristic characteristic of spermatophytes of the region is subtropical in nature.更多还原