According to the news of China Central Television, on May 20, 2022, the FAO announced that three Chinese heritage sites - the nomadic system of the aruhorqin grassland in Mongolia, China, the Tieguanyin tea culture system in Anxi, Fujian, China, and the dryland Shiyan terrace system in Shexian County, Hebei, China - use traditional methods and knowledge in a unique way to maintain unique biodiversity and ecosystems, It is officially recognized as an important global agricultural cultural heritage.