The Changes of Canal Water Source:The Difficulties of River Management in the Water Diversion from the Qin River to the Grand Canal in the Ming Dynasty
The Yellow River always changed course in different directions in the early Ming Dynasty,so there were many artificial diversion projects.In order to solve the problem of water shortage in the Grand Canal,the river officials of Ming Dy-nasty flowed water from the Qin River to supplement the Grand Canal.The Qin River has also received great attention.From the period of Jingtai to Chenghua in the Ming Dynasty,the river minister presided over the project of diverting water from the Qin River,achieving the diversion of the Qin River from multiple directions to the canal.From the period of Hongzhi to Jiajing,the main task of the Qin River management was to build embankments and dredge the river.The implementation of the Qin River diversion project was difficult and became a backup plan for the water source.From the period of Longqing to Wanli,a series of debates and contradictions arose around the diversion of the Qin River into the Wei River,such as the dispute between the con-fluence and divergence schools of thought in the court on river management,the struggle between the livelihood of the people and the state's management of water transport,and the dispute over the interests of the upper and lower reaches of the Qin Riv-er.Against the backdrop of the rise of water transport and changes in the water environment of the Yellow River,the function and status of the Qin River changed after the mid Jiajing period,and the contradiction between people's livelihood and the source of water transport was ultimately reconciled under the goal of ensuring water transport.The rise and fall of the project of diverting water from the Qin River to the Yellow River reflectes the inherent dilemma in management of the Yellow River in the Ming Dynasty.
Ming Dynastywater diversion from the Qin River to the Grand CanalYellow RiverQin River