Grand Canal Grain Transport System

Timeline

1. 1368–1421Canal route from Nanjing to Beijing · ChinaIn the early Ming, a pattern gradually took shape with canal grain transport as primary and sea transport as secondary; after the Yongle relocation of the capital, grain transport expanded, and Huai'an and Tongzhou became key hubs.
2. 1561–1570Yellow–Huai confluence to the Shandong canal section · East ChinaFrom late Jiajing to early Longqing, the court focused on dredging the grain canal and improving the Yellow–canal confluence section; sea transport shrank further, deepening grain transport's dependence on the Grand Canal, and grain boat organization and river-work funding became subjects of court debate.
3. 1565–1570Huai'an · Jiangsu ProvinceThe Grain Transport Governor-General was stationed at Huai'an, overseeing river transport, lake transport, and grain boat dispatch; during the Longqing era this hub handled the consolidation and northward shipment of Jiangnan grain, forming a complete chain with the granary and canal inspection systems.
4. 1573–1600Tongzhou grain transport wharf · Beijing MunicipalityIn the early Wanli reign, Zhang Juzheng reformed officialdom and finance; problems such as grain transport deficits and neglected grain boats became prominent, and the court strengthened supervision and river-work investment, laying the groundwork for the grain transport crisis of the mid-to-late Ming.