SPATIAL AND TEMPORAL VARIABILITY OF ION COMPOSITION AND MINERALIZATION OF WATERS IN THE NORTHERN DVINA RIVER

V. F. Brekhovskikh, Z. V. Volkova, and D. V. Lomova

Space—time variability of the ion composition and mineralization of waters in the Northern Dvina River is considered for a long period (1949—1999). The ion composition of water is shown to depend strongly on natural factors.