The division and superposition of groundwater models under new stresses

The paper briefly introduced the superposition principle of linear mathematical models,and the problem of its application in groundwater modeling. Under new stresses, a groundwater model can be divided into an initial flow field model and an appended flow field model. The division and superposition of groundwater models can simplify the problem to be solved and help understanding the hydrogeologic process. It is very convenient using the appended flow field model in parameter identification problems.