Hydrochemical characteristics of salt marsh wetlands in western Songnen Plain

According to classification system of wetland in Ramsar Convention, salt marsh belongs to inland salt lake formed by regional hydrogeologic and climatic conditions[1]. In western Songnen Plain, the most distinct characteristic of water environment in salt marsh wetlands is that many water bodies have high salt contents and pH values, so salt marsh wetlands are categorized as a special natural synthesis[2]. 1 Natural environment in western Songnen PlainThe Songnen Plain lies to the east of …

Hydrochemical characteristics of salt marsh wetlands in western Songnen Plain

In western Songnen Plain of China, the saline-alkaline degree of water bodies is high in salt marsh wetlands. Generally, pH is above 8.0, and the hydrochemical types belong to HCO32--Na . Through analysis on the basic saline variables such as CO32-, HCO32-, Cl-, Ca2 , Mg2 , SO42-, Na , and the derivative variables such as SAR, SDR, RSC, SSP, the relationships between different variables are found, and the discriminant equations are established to identify different saline-alkaline water bodies by using principal component analysis.