Groundwater Numerical Simulation under Centralized Exploitation Condition in Large-Sized Irrigation District

A 3D groundwater flow model is built based on analysis of hydro-geological conditions of a large-sized irrigation district,and all the parameters are determined by Visual Modflow in each of the 5 sub-areas of the irrigation district.The reliability of the model is tested by long-term historical groundwater monitoring data and the model is then used for the numerical simulation of centralized groundwater exploitation.It is shown that the analysis method used in the simulation is reasonable and the simulation result has high forecast precision and potential practical values.