Pingliang,China

Pingliang is a prefecture-level city under the jurisdiction of gansu province. It is known as "longshang dry wharf" and is the key town of ancient "silk road". Out for barrier integrating ecology, control WuYuan town since ancient times, is a traditional "mohican" and longdong commodity collection and distribution center, the central plains to the western regions and the eastern end of the northern ancient silk road traffic and military position, is not only the northwestern region of highway hub, and the second line of Eurasia land bridge is an important transit point.

Jing river is the largest tributary of weihe river, namely weihe first branch, Yellow River second branch. Jing river has a total length of 455.1 kilometers and a basin area of 45421 square kilometers. Jinghe river trunk river valley is open, generally more than 1 km, from the plain cool to jingchuan, with a width of 2 ~ 3 km, smooth and complete sichuan, with good irrigation conditions.