Aralské jezero

Aral Sea – Where the fourth largest lake in the world had gone? by Anna Píšková.

During the last 50 years the single water body of Aral Sea was subdivided into several small lakes. Lake level was lowered by more than 25 m, its area was reduced dramatically. Lake desiccation is accompanied by changes in chemical (water mineralization), physical (hydrodynamics), and also biological lake characteristics. The major cause of described changes is long-term overusing of the water of both tributaries for irrigation purposes.