Introduction to Zhanghe Reservoir: Jingmen Zhanghe Reservoir is a reservoir group built by intercepting the east branch of the Juzhang River, a tributary on the north bank of the middle reaches of the Yangtze River - the Zhanghe River and its tributaries. It is connected in series through three sections of open channels to form a whole, like a bright star. Pearls are embedded in the land of Jingchu.