What is Dnieper combine scheme?

The Dnieper Hydroelectric Power Station Sequence with reservoirs, controlling the normally irregular Dnieper River flow simultaneously with large energy production, created the prerequisite for extensive irrigation of fertile but arid soil in the southern Ukraine, for converting the Dnieper River into a continuous deep-water channel from the Black Sea to the Pripet estuary and assured the satisfaction of the growing industrial and population water consumption demand not only on river lands but in the water deficient Donbas, Krivoi Rog and Crimea regions.