应用稳健主成分分析研究欧亚大陆早侏罗世植物区系划分尚属首次试验。
This is the first time to use the Robust principal component analysis method in studying the early Jurassic floristic division of Eurasia continent.
云南既是东亚、东南亚和东喜马拉雅等植物区系的交汇区，又是欧亚大陆植物区系与赤道热带的唯一陆地交流通道；
Yunnan is the place where the floras of East Asia, SE Asia and East Himalayas meet, and the only land passage between the floras of Eu-Asian Continent and the equator ;
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