She remembered that Xiao Rongyan once said, Yanwo relied on the Guanghe Canal to become fertile land. When Yan built the Guanghe Canal years ago, they lacked manpower and financial resources. Mr. Sima Sheng, a water conservancy expert, worried about floods harming the people. So, during the construction of the canal, there was precise planning. The Guanghe Canal only had water during the flood period of the Niuliang River and it was abundant. However, using this method to build the Guanghe Canal could only last for twenty years at most.
To ensure the benefits of the Guanghe Canal for eternity, it was necessary to renovate and extend it to the Long River after twenty years.
If Bai Qingyan could persuade the Crown Prince to reconstruct the Guanghe Canal and connect it to the Long River, thus transforming Yanwo back into fertile land, and then have Shen Tianzhi manage it, it would be tantamount to holding the granary in their hands.
