Qinghai–Gansu sprachbund
Linguistic area in northwest China / From Wikipedia, the free encyclopedia
The Qinghai–Gansu sprachbund or Amdo sprachbund is a sprachbund in the plateau traversed by the upper Yellow River, including northeastern Qinghai and southern Gansu. This has long been an area of interaction between speakers of northwestern varieties of Mandarin Chinese, Amdo Tibetan and Mongolic and Turkic languages.[1] These families feature contrasting typologies, which spread between languages in the region.[2] The languages have come to share many features, and differ significantly from their relatives outside the region.[3]