☰ Contents · Natural science

Sources of water; water sources of Uzbekistan

Lessons 36–37 · 2 lessons · Y.V. Malikova, S.V. Kosyanenko. Natural Science Grade 4, Part 1. Novda Edutainment, Tashkent, 2023; S.V. Kosyanenko, Y.V. Malikova, O.E. Tigay. Natural Science Grade 4, Part 2. Novda Edutainment, Tashkent, 2023
37

Water sources of Uzbekistan

Textbook: Part 2, pp. 26–29
GoalKnow Uzbekistan’s main water sources (Amu Darya, Syr Darya, lakes, reservoirs, canals) and the Aral Sea problem; find them on a map.
New words
Amu Darya · AmudaryoSyr Darya · Sirdaryotributary · irmoqAral Sea · Orol dengizi
Explanation

Uzbekistan lies far from oceans and seas, so it gets its water mainly from rivers, lakes and reservoirs. Most rivers start from glaciers and snows in the mountains. The largest rivers are the Amu Darya and the Syr Darya. The Amu Darya is the most abundant river in Central Asia; it forms where the Panj and Vakhsh rivers join, and counted together with the Panj it is about 2,500 km long and flows through several countries. Other rivers are the Zarafshan, Chirchiq, Kashkadarya and Surkhandarya. Lakes include Aydarkul and Sarykamysh; reservoirs include Chorvoq, Tuyabuguz and Andijan. In Tashkent there are canals such as the Anhor. The Aral Sea is actually a salt lake that was once among the biggest in the world. When Amu Darya and Syr Darya water was taken for irrigation and stopped reaching it, it dried and shrank; its water became several times saltier and the dry bed was covered with salt. Salty dust blown by wind harms plants, animals and people. Today saksovul is planted on the dry bed to stop salt and sand from drifting.

Worked examples
The Chorvoq reservoir on the Chirchiq river was built for the Chorvoq hydroelectric station.
The Aral is a lake because it is not connected to the ocean; it was called a “sea” because it was very large and salty.
Class activity

Map work: on a map of Uzbekistan show with arrows where the Amu Darya and Syr Darya start and where they flow; mark two lakes and two reservoirs by name. In groups, write as many river names as possible in 1 minute.

Practice
1
Name Uzbekistan’s two biggest rivers.
2
Why does Uzbekistan get its water mainly from rivers and lakes?
3
Why did the Aral Sea dry up?
4
What is being done on the former Aral seabed?