Management model of unconfined aquifer system with small thickness with respect to drawdown based on two-level response matrix

In the management of unconfined aquifer systems, if the thickness of the aquifer is very small and the drawdown is relatively big, errors may arise when the superposition principle is adopted directly. In allusion to this limitation, a new management model for the management of unconfined aquifer systems called two-level response matrix method is put forward. This method is applied in groundwater resources management in Shenyang city. The managing results show that this method can, in some degree, increase the efficiency of management and decrease the risk of management.