秦岭种子植物区系地理研究的初步结论

Preliminary Conclusions for Floristic Geography of Flora of Carpophyte in Mt.Qinling

分析 70多年来研究秦岭种子植物区系的有关文献 ,得出秦岭种子植物共有 198个科 ,10 0 7个属 ,344 6个种。北温带成分是秦岭植物区系的主导成分 ,秦岭植物区系组成中含有较高比例的中国特有科和中国特有属。秦岭山地是中国植物区系的一个关键组成地区 ,也是中国南北方植物分布的一条重要界限。秦岭植物区系起源古老 ,并有明显的热带起源特点 ,区系分区的结果证明秦岭植物区系属于中国—日本森林植物亚区。

The researches over the past 70 years on the floristic geography of carpophyte are outlined.It is obtained that there are 3 446 species belonging to 1 007 genera of 198 families of carpophyte in Mt. Qinling,in which the north temperate elements are dominant.There are 5 endemic families and 44 endemic genera for China in the carpophyte flora.The Mt. Qinling is not only a key region in the Chinese carpophyte geography,but also an important boundary line of flora between the south and the north of China.The origin of flora in Mt.Qinling is ancient and has tropical nature.The researches on floristic regionalization reveal that the flora in Mt.Qinling belongs to the Sino Japanese forest plant sub kingdom.