Description of the hydrochemical regime of the Dnister river (by basic ions)

Abstract

In this part of the Dniester, water mineralization increases: Dniester - medium (379-428 mg/L); Dniester - lower (425-526 mg/L). Mineralization of the Dniester River water decreases during the spring flood (305-425 mg/L) and increases during the winter low-water period (399-526 mg/L). The average annual ion runoff (Σi) of the Dniester River is 4374.103 tons. For ionic runoff, the same proportion remains for seasons as for water runoff. The ion runoff in the Dniester basin is 60.8 t/km2 per year, which is 2.3 times higher than the ion runoff in the Dnipro basin (26.8 t/km2), but 1.6 times less than in the Danube basin (95.2 t/km2). In general, this is a high indicator of chemical erosion in the river basin.