By A Class Of Parameter Inversion Method In Riverside Groundwater Resources Three Nitrogen Migration Prediction Model

This article first introduces the importance of groundwater as water resources,it reviews the research status of groundwater,explained the main research.As a main water source,shenyang has a problem of "three nitrogen" pollution in the research area.This paper given the mathematical model of three nitrogen migration prediction in riverside groundwater on the basis of previous research,the methods for solving inverse problems at present were summarized,selected genetic algorithm,the homotopy algorithm computing nitrate nitrogen dispersion coefficient in the research area,and use the coefficients to simulate the migration of nitrate nitrogen in the studied area.For establishing a Hun river basin in shenyang section water "three nitrogen" migration model,predicting groundwater system in the spatial and temporal distribution of "three nitrogen" provide initial parameters.The results show that using the genetic algorithm,the homotopy algorithm to solve the model parameters is feasible and effective in the research area.The two methods can be applied to the parameter identification of other pollutants migration model.