Yunnan is located at the junction of two major biodiversity hotspots in the world, and the high-altitude Qinghai-Tibet Plateau has a rapid transition from Yunnan to the low-altitude Malay Peninsula. Most of the rivers in Yunnan run from north to south. Tropical animals and plants go deep into most parts of Yunnan with the hot and humid air going northward. As a result, Yunnan has more than 50% of the country's plant species, 70% of the animal species and 80% of the vegetation species in 4% of the country's land area.
passage?
The relationship between topography and biodiversity in Yunnan.