How much is the ticket for Ya Dan Longcheng?

Ya Dan Longcheng Ticket Price: 25 yuan

Ya Dan, also known as Yaldang, is the name of steep mountain and steep wall in Uygur language. This kind of terrain is the most typical and widely distributed in Luomian area of Ya Dan. The most spectacular is Longcheng, which is located in the northeast of the ancient lake basin in Lop Nur. It is the area with the strongest wind erosion. The mound is as high as a city palace and looks like a lying dragon. The huge mound platform is as high as 12 to 20 meters, and the side wall is steep, making it extremely difficult to climb. Water bedding can be clearly seen from the cross section of the side wall; The lower part is the interbedded layer of silty sand and thick gray-green sand, and the top part is a reddish silty clay layer, which is cemented very hard by calcium carbonate to form a protective layer, making the top surface of the mound very flat.

The buildings in Longcheng are colorful: some are castles, dignified and dignified; Some are like city walls, with dragons and tigers crouching; Some are like tall buildings, standing tall. The wide wind-eroded depressions distributed between these grotesque landforms are like streets and lanes, deep and quiet, full of fun. Being in Dragon City, I feel that the Dragon City in front of me is not an ancient city, but it is better than the ancient city, which can be confused with reality.

Xinjiang in China has a vast territory, surrounded by mountains and surrounded by Oyamaguchi on both sides. Cold air from the Atlantic Ocean and the Arctic Ocean flows through the mountain pass into northern Xinjiang, and then bypasses the East Tianshan Mountains into the Tarim Basin, causing long-term regional gale along the way. The wind in Xinjiang lasts for a long time (up to 100 days a year), with wide distribution and strong wind, so we often hear the news of cold air coming from Xinjiang in the weather forecast.

As a arid kingdom, Xinjiang, the wind is of special significance to the shaping of landforms. Ya Dan, Dragon City, Ghost Town and other special landforms are the masterpieces of Fengshen. Ya Dan, also known as Jardin, is the Uighur name for steep mountains and steep walls. This terrain is the most typical and widely distributed in Ya Dan around Lop Nur. /kloc-from the end of 0/9 to the beginning of the 20th century, Swede Swinheding and Englishman Stan visited Lop Nur and adopted this word in their articles. Thus, the word "Ya Dan" has become a general term in world geography and archaeology, referring to a special landform in arid areas.

The landforms of Ya Dan are usually developed on the lakes and plains in arid areas. As the lake dries up, the cohesive soil cracks due to drying up, and the prevailing wind blows along the cracks, and the cracks gradually expand, which makes the originally flat ground evolve into many irregular landforms, including steep-walled ridges (piers) extending parallel to the prevailing wind direction and strange landforms with wide and narrow grooves. The mound is half a meter to more than ten meters high and tens to hundreds of meters long, and its components are silt, spun yarn and sandy clay. The narrowest ditch is one or two meters, and the widest ditch is dozens of meters. There are 3,000 square kilometers of Ya Dan landforms in the east, west and north of the ancient Lake Basin in Lop Nur.