Bian River and Grand Canal Grain Transport System

Timeline

1. 1111–1118Bianjing grain transport docks · Kaifeng CityDuring the Zhenghe era, Bian River grain boats gathered in large numbers, with annual shipments of rice and wheat from the southeast reaching some six million shi; offices such as the Director-General of Grain Transport supervised shipping, river works, and granary transfers, ensuring military rations and official salaries for the capital.
2. 1115–1120Yangzhou · Yangzhou CityJiangnan grain taxes were transshipped from Yangzhou, Zhenzhou, and other places into the Huai River, then northward via the Bian River to the capital, forming a Grand Canal–Huai River–Bian River combined transport network that was the main artery of Northern Song fiscal logistics.