When I arrived at Xizhou, the first thing I saw was that the two branches and leaves at the head of the village were more numerous than the trees. This is a rare tree in northern China, commonly known as evergreen, scientific name is alpine banyan. Bai people believe that Daqing Tree is a symbol of the prosperity of a village, so it is also called "Fengshui Tree". Daqingshu is an ancient Bai village with its own geomantic trees. The trees usually form a group activity center with the stage for villagers. The two trees at the head of Xizhou village are very old. Legend has it that there are two trees with one Yin and one yang, one sprouting and the other deciduous leaves, which start again and again and flourish alternately, one bearing fruit and the other never bearing fruit. During the interval of work, villagers often take a nap under the trees; the long serpent-like procession around the village revels around it; even when the village dies, the funeral crowd will also circle around it and burn the paper covers under the trees in order to support the dead's attachment to the village. Not far from the village in the Northeast corner, there is also an old lady green tree. When autumn comes, there are always snow-white heron storks, which is a unique landscape of Xizhou. Sifang Street, Xizhou repression center, is a small square surrounded by shops. Here stands a stone square, which is the "Civilization Square" built in recent years. The original Stone Square in this place was called "Tianming Square" built after several Jinshi in the town of Ming Dynasty. At that time, all villagers who gained fame in the imperial examination were likely to engrave their names. Now Xizhou is the place where administrative divisions suppressed the expropriation of government, but in history it has a city size. As early as before Nanzhao migrated to Erhai, this was the settlement of Bai ancestors "Heman". At that time, it was called Dali City. The inhabitants already had many Nikkei scriptures. Legend has it that Shi Wanshi, a general of Sui Wendi Emperor, had a soldier and horse here. It was also called Shicheng. The nearby Pingba Zi was called "Shilai" (the same meaning as Dian Advertising State). When Nanzhaomo arrived, the palace was built here. The pattern of the city can be traced from the current place names. There are village names such as the north, East and south of the city. In the past, archaeologists have excavated the word tiles, thick cloth tiles and lotus tiles in Nanzhao.