With the increase in the need for flood prevention and lake resource used by humans, the construction of floodgates and sluices has changed the hydrological connection between rivers and lakes, and between adjacent lakes. In river-disconnected lakes, exploitation and use of lake resources have resulted in water quality decline and mechanical disturbance intensification to a different degree. Of the large number of river-disconnected lakes in the middle-lower reaches of the Changjiang (Yangtze) River, the Futou Lake, and the Xiliang Lake lie close together and are, historically, directly connec...
