Qinling Mountains are not only the separatrix of the warm temperate zone and the subtropical zone in the east of Asia, but also the dividing line of the southern and northern part in China. They are the highest one in east-west trend mountains in the central eastern part of the mainland of China. The major ridge part of Qinling Mountains are located in Shaanxi province. It's the transition region with obvious demarcation, and it's also a vulnerable, sensitive area. Guanzhong and Shaannan region lied in two ...
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