Formation mechanism of water compositions in the middle part of the Dousitu River

On the basis of analyses of hydrogeology of the study area,the characteristics of chemical compositions of lake water,river water and groundwater were analyzed.The results show that for the relatively inert species,the compositions of the river water can be obtained by the mixing of groundwater with river water in the upper part of the river,but for the reactive species,their compositions are obviously affected by water-rock interactions.By using the mass balance of Cl-,the mixing proportion of ...