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同处于亚非大陆北回归线附近的阿拉伯半岛和北非撒哈拉都是大沙漠,唯有中国的云南等地是绿洲。云南位于21°9′-29°15′N。境内峰峦叠嶂,山高谷深,海拔高差悬殊,山巅与谷底常逾千米,地形地貌十分复杂。云南西北部是青藏高原和横断山脉,西南和东南部受孟加拉湾和北部湾影响,致使全省气候囊括了热、温、寒三带,再加很少或没有(滇东南)受到第四纪冰川侵袭,成了绿色植物的集聚地。在38万多平方公里的土地上,仅高等植物就有一万五千种左右,占全国高等植物总数的一半,使云南成为举世闻名的“植物王国”。在这个“植物王国”里自然有茶族这个大家庭。全省129个县(市、区),除滇西北少数几个县外都有茶树生长。在茶
Both the Arabian Peninsula and the Sahara in North Africa, which are close to the Tropic of Cancer in Asia and Africa, are the great deserts. Only China, including Yunnan, is an oasis. Yunnan is located at 21 ° 9’-29 ° 15’N. The territory of mountainous ridges and peaks, high mountains and deep valleys, altitude disparities, mountains and valleys often over one thousand meters, topography is very complex. The northwestern part of Yunnan is the Qinghai-Tibet Plateau and the Hengduan Mountains. The southwestern and southeastern regions are affected by the Bay of Bengal and the Beibu Gulf, resulting in the province’s climate including the three zones of heat, temperature and cold with little or no (southeastern Yunnan) Invasion, has become a gathering place for green plants. In more than 380,000 square kilometers of land, there are only about 15,000 higher plants, accounting for about half of the total number of higher plants in the country, making Yunnan a world-famous plant kingdom. In this “plant kingdom” there is a natural tea family. The province’s 129 counties (cities, districts), with the exception of a few counties in northwest Yunnan have tea tree growth. In the tea