雅丹是地理学名词,汉语译为雅尔当,是维吾尔语“险峻的土丘”之意。雅丹专指干燥地区的一种特殊地貌。沙漠里如有基岩构成的平台形高地,高地内有节理或裂隙发育,暴雨的冲刷使得节理或裂隙加宽扩大。一旦有了可乘之机,风的吹蚀就开始起作用了,由于大风不断剥蚀,风蚀沟谷和洼地逐渐分开了孤岛状的平台山,使后者演变为石柱或石墩。旅游者到了这里,就像到 Yadan is a geography term, translated into Yaldan in Chinese, which is the meaning of Uighur’s “dragging mound”. Yadan specifically refers to a special landform in dry areas. In the desert, if there is a platform-shaped plateau composed of bedrock, there are joints or fissures in the highlands, and the erosion of heavy rain makes the joints or fissures widen and enlarge. Once wind power is available, wind erosion begins to take effect. As the winds continue to erode, wind erosion valleys and depressions gradually separate the island-like platform mountains, and the latter evolve into stone pillars or stone piers. Tourists come here just like