The first is the transfer of water between basin areas.

In 1967, high forest covered almost 70% of the basin area.

The area of its basin is 17,2 km2 (within the city).

A reservoir was built immediately north of the basin area.

It is 135 km long, and has a basin area of 1348 km2.

It is 112 km long, and has a basin area of 1994 km2.

It is 378 km long with a basin area of 5,270 km2.

It is 117 km long with a basin area of 1,801 km2.

The Muhuri has a total basin area of 839 sq.km.

The river has a basin area of 1904 km2.