Undated file photo shows children performing lusheng (reed pipe) dance in Nayong, southwest China's Guizhou Province. A total of 31 art forms of Guizhou Province have been included in China's Intangible Cultural heritage List, which has 518 items. [Xinhua Photo]

Undated file photo shows a performance of local opera "Nuoxi" in Yinjiang, southwest China's Guizhou Province. [Xinhua Photo]

Undated file photo shows a performance of lusheng (reed pipes) dance in Shuicheng, southwest China's Guizhou Province. [Xinhua Photo]

Undated file photo shows embroidery of the Shui ethnic group in Sandu, southwest China's Guizhou Province. [Xinhua Photo]

Undated file photo shows people of the Miao ethnic group in Danzhai, southwest China's Guizhou Province. [Xinhua Photo]

Undated file photo shows children of the Dong ethnic group singing together in Congjiang, southwest China's Guizhou Province. [Xinhua Photo]

Undated file photo shows a performance of local opera "Dixi" in Anshun, southwest China's Guizhou Province. [Xinhua Photo]