1. Yardang LandformThis paper provides a comparative analysis of Yardang landform and others landforms at home and abroad in terms of morphological characteristics, material composition, ages of sedim...

Yardang Lanform: It is distributed inside the Yardang scenic spot. The total number of Yardang landforms accounts for more than five thousand. Being diverse and well-proportioned, it preserves the pro...

Mogao Crottoes:Excavated since 1,600 years ago (366), Mogao Grottoes consists of 735 caves in the cliff wall of about 1,600 meters long, where there are murals of 45,000 square meters painted in diffe...