REACTION PATH SIMULATION OF THE CHANGE OF MAJOR IONS IN GROUNDWATER IN URBAN AqUIFER,NORTH CHINA
华北城市地区潜水中主要离子含量变化的反应途径模拟

In recent thirty years,the concentrations of major ions such as Ca,Mg in groundwaterin urban aquifer have been increasing continuously,which has harmful effects on agricultureand industry.The phenomena were studied by employing reaction path simulation models.Results show that salt effect and the increase in have obvious effect on the increase inCa2+,Mg2+ concetrations in groundwater,The two factors even have more stronger effectson the dissolution of silicate and aluminosilicate containing Ca,Mg than on others.