Photo shows black-necked cranes in the wetland of Dinggye County. [China Tibet News/Zhao Yongqi,Migmar,Gao Jiaku]

Dinggye County of Xigaze City, southwest China's Tibet Autonomous Region is densely covered with rivers and swamps, which creates an important plateau wetland in the Mount Qomolangma national natural reserve, with a total area of 29381.44 hectares. It is worthy of the name of "wetland kingdom".