茶树自古生长在湿热多雨的亚热带地区,是原始森林生态系统中的一种野生乔木植物。至今,在云南、贵州、广西等地区还有野生乔木大叶茶树分布。在长期的遗传进化过程中,茶树形成了喜温、好湿、耐荫、喜漫射光等生物学特性,与其它物种间存在相互依存的关系。由于茶叶是一种很有营养价值的饮 Tea tree has been growing in hot, humid and subtropical regions since ancient times. It is a kind of wild arbor in the primitive forest ecosystem. So far, in Yunnan, Guizhou, Guangxi and other areas there is distribution of wild tree big leaf tea. In the course of long-term genetic evolution, the tea plants formed the biological characteristics of hi-temperature, good wet, shade-resistant and diffuse light, and interdependent relationship with other species. Because tea is a very nutritious drink