通州城坐落于京杭大运河北端西岸,是北京的东大门,在历史上曾经是仓储漕运的重地,江南塞北物资的交流枢纽。我国历史上金、元、明、清均定都北京,京师聚集着皇室宗亲、文臣武将等各种人,每年需要大量的粮油菜薪。但是京郊一代所产的粮食有限, Tongzhou City is located in the northern bank of Beijing-Hangzhou Grand Canal in the west coast, is the east gate of Beijing, historically used to be the storage of water transport, the southern hub of Saibei material exchange. In the history of our country, gold, yuan, Ming and Qing dynasties were capitalized in Beijing. The capitalists gathered a great variety of people such as the royal clan relatives and the military commanders for civil administration. However, the food produced in the suburbs of Beijing is limited,