云南自然条件优越,大部分地区未受第四纪冰期的影响,自第三纪始新以来一直处于热带季风气候,保存了许多第三纪以前的古生物,形成我国热带生物最富集的地区,起源较古老的山茶科植物能连续不断地生长、生存下来,所以云南茶树品种资源极其 Yunnan enjoys excellent natural conditions. Most areas are not affected by the Quaternary glacial period and have been in a tropical monsoon climate since the beginning of the Tertiary. Many prehistoric paleontologists have been preserved, forming the most abundant tropical biota in China. Their origins The older camellia plants can continue to grow, survive, so the resources of tea varieties in Yunnan extremely