guanxianIntroduction：About Guan County: Guan County is a city of Liaocheng. It is located at the junction of the three provinces of Shandong, Shandong and Henan. It is open to the economically developed coastal open window in the east, and the central and western regions in the west are the provincial economic cluster and the Central Plains economic zone. The entire territory is in the Yellow River alluvial plain, 1,152 square kilometers. It contains 18 townships (streets) and 754 villages with a population of 812,000 (2012). Guan County is the hometown of Chinese pears, the hometown of Chinese white poplar, and the national plain greening county. As of 2012, the forest coverage rate reached 40%. The culture of Guan County is profound, and the famous Chacha, Liulin Huagu and Langzhuang noodles all originate from this, and are listed as national intangible cultural heritage.