The soil salinity data for the Bohai Rim coastal zone in the future

I constructed an optimal multiple linear regression model for estimating future soil salinity, using climate, population, and several other independent variables, by using the Akaike information criterion (AIC) method. Using the model and  future MAP, MAT, and population data, and the elevation and distance (nearest distance to river) data, I generated soil salinity maps for the time-periods 2041-2060 and 2081-2100 under the SSP245 and SSP585 scenarios, respectively.