Due to Jingjiang flowing to the south, the relationship between river and lake changes essentially, and its namral balanced link is broken.Dongting River is forced to die.

• 荆江四口南流，使江湖关系发生了根本变化，打破了这种自然因素的平衡关系，迫使洞庭湖路上了类似云梦泽的消亡之路。