"The flowers of the flower baskets are fragrant, listen to me to sing a song." This popular "Nan Niwan" is believed to have been heard by everyone. Nanniwan is also one of the tourist attractions in Yan'an, Shaanxi. Nanniwan is located in the ring line of Xi'an Huangdi Mausoleum Yan'an Nanniwan Huanghe Hukou Waterfall Xi'an. The song Nan Niwan sings like Jiangnan scenery, but you know Well, a long time ago, it was a barren land. A hundred years ago, the waters and soils were fertile, but in the middle of the Qing Dynasty, the Qing rulers provoked ethnic disputes and killed them here, making this a barren land of wild grasses. But today, when you come here, you will find that there are 260,000 mu of fertile fields in front of you. This is the only place in northern Shaanxi where rice can be grown.