黔南州古树资源植物区系分析

Analysis of ancient trees resources flora in Qiannan state

黔南州5442株古树分属54科120属210种(含珍稀树种46种,中国特有种68种),其中裸子植物7科17属24种,被子植物47科103属186种。科、属、种分布区类型分别可划分为8个分布区类型6个变型、12个分布区类型11个变型和12个分布区类型9个变型。科和种的热带性质较为明显,而在属的层面上,温带成分与热带成分的比重无明显差异;科的热带性质偏向于泛热带分布,属和种则以泛热带分布和热带亚洲分布为重;科的温带性质偏向于北温带和南温带间断分布,属以北温带分布、东亚和北美洲间断分布、东亚分布为重,种则以北温带分布为重。

There were 5442 ancient trees in Qiannan state belonging to 54 families, 120 genera,210 species（including 46 species of rare species, 68 endemic species in China）, of which gymnosperms have 7 families, 17 genera and 24 species, 103 genera and 186 species in 47 families of angiosperm. Families, genera, species distributiontypes can be divided into 9 variant of 8 distribution, 11 variant of 12 distribution, 9 variant of 12 distribution. Families and species of tropical nature is obvious, but at the level of genera, there was no significant difference between the temperate and tropical component; tropical nature of faro ilies in the pan tropical distribution, genus and species of the pantropical distribution and tropical Asia distribution was heavy; temperate nature of families in the northtemperate zone and the South Temperate Zone disjunct distribution, and most genere distributed in the north temperate,East Asia and North America disjuncted,East Asiadistribution, while most species distribu ted in north temperate.