The water bodies of Azerbaijan were formed over a long geological timeframe and changed significantly throughout that period.
The country's water systems are continually changing under the influence of natural forces and human-introduced industrial activities.
Artificial rivers (canals) and ponds are a part of Azerbaijan's water systems.
The rivers that directly flow into the Caspian Sea, originate mainly from the north-eastern slope of the Greater Caucasus and Talysh Mountains and run along the Samur-Devechi and Lenkeran lowlands.
The formation of these reservoirs is one of the measures that has been undertaken in order to ration the utilization of water and energy resources.