摘要
The Tibetan plateau is the largest high-altitude land mass on the Earth,with an area of 2.3 million km^2 and an average elevation of 4,500 m above sea level.The collision of the Indian subcontinent with the Eurasian plate during the Plioeene caused dramatic changes in the climate of the region,which became drier,colder and windier.These harsh conditions caused
The Tibetan plateau is the largest high-altitude land mass on the Earth, with an area of 2.3 million km2 and an average elevation of 4,500 m above sea level. The collision of the Indian subcontinent with the Eurasian plate during the Pliocene caused dramatic changes in the climate of the region, which became dri- er,