The Numerical Simulation of Security of Groundwater Supply in the Centralized Exploitation Condition of a Large Irrigation District

A three dimensional groundwater flow model is built based on the analysis of hydrogeological conditions of a large irrigation district and all the parameters are determined by the model in 5 sub-domains of the irrigation district. The reliability of the model is tested by long series historical groundwater monitoring data and the model is then used for the analysis of centralized groundwater exploitation. It is shown that the analysis method used in the simulation is reasonable and the simulation result has a higher forecasting precision and potential practical values.