Uzbekistan, officially Republic of Uzbekistan, Uzbek Ŭzbekiston or Ŭzbekistan Respublikasi, country in Central Asia. It lies mainly between two major rivers, the Syr Darya (ancient Jaxartes River) to the northeast and the Amu Darya (ancient Oxus River) to the southwest, though they only partly form its boundaries. Uzbekistan is bordered by Kazakhstan to the northwest and north, Kyrgyzstan and Tajikistan to the east and southeast, Afghanistan to the south, and Turkmenistan to the southwest. The autonomous republic of Qoraqalpoghiston (Karakalpakstan) is located in the western third of the country. The Soviet government established the Uzbek Soviet Socialist Republic as a constituent (union) republic of the U.S.S.R. in 1924. Uzbekistan declared its independence from the Soviet Union on August 31, 1991. The capital is Tashkent (Toshkent).

Relief

Nearly four-fifths of Uzbekistan’s territory, the sun-dried western area, has the appearance of a wasteland. In the northwest the Turan Plain rises 200 to 300 feet (60 to 90 metres) above sea level around the Aral Sea in Karakalpakstan (Qoraqalpog’iston). This terrain merges on the south with the Kyzylkum (Uzbek: Qizilqum) Desert and farther west becomes the Ustyurt Plateau, a region of low ridges, salt marshes, sinkholes, and caverns.

Southeast of the Aral Sea, small hills break the flatness of the low-lying Kyzylkum Desert, and, much farther east, a series of mountain ridges partition Uzbekistan’s territory. The western Tien Shan includes the Karzhantau, Ugam, and Pskem ranges, the latter featuring the 14,104-foot (4,299-metre) Beshtor Peak, the country’s highest point. Also part of the western Tien Shan are the Chatkal and Kurama ranges. The Gissar (Hissar) and Alay ranges stand across the Fergana (Farghona) Valley, which lies south of the western Tien Shan. The Mirzachol desert, southwest of Tashkent, lies between the Tien Shan spurs to the north and the Turkestan, Malguzar, and Nuratau ranges to the south. In south-central Uzbekistan the Zeravshan valley opens westward; the cities of Samarkand (Samarqand) and Bukhara (Bukhoro) grace this ancient cultural centre.

Drainage

Disastrous depletion of the flow of the two historic rivers—the Syr Darya and Amu Darya—has brought rapid change in the Aral Sea and greatly altered the delta of the Amu Darya. Most streams of the delta have dried up, and the Aral Sea, once the fourth largest inland body of water in the world, has lost as much as nine-tenths of both its water (volume) and its surface area since 1961. On the north as well as on the east, huge shallow and dead ponds have become separated from the main remnant Aral Sea, cut off by sandbars that emerged as the water level dropped some 45 feet between 1961 and 1992. After 2010 the eastern lobe began alternating between wet periods and dry periods during which it would dry up completely. Overuse of water from the Syr Darya and Amu Darya in both agriculture and industry brought about this dangerous decline. The Syr Darya ceased to deliver any appreciable amount of water to the Aral Sea by about 1978, and flows from the Amu Darya became negligible in the first decade of the 21st century. The southern rivers tributary to the Amu Darya—the Surkhan and Sherabad, followed by the Zeravshan and Kashka—contribute little flow, for the last two trickle into nothing in the desert. The Syr Darya, the second largest river in Uzbekistan, forms there by the confluence of the Naryn and Qoradaryo rivers.

The diversion of the Amu Darya and the Syr Darya has resulted in intense salinization of the sea, which also has suffered tremendous pollution from insecticides and chemical fertilizers during the past several decades. This chemical pollution and the decline in water level have killed the once-flourishing fishing industry, grounded most ships that formerly worked within the Aral’s shores, and contaminated wide areas around the sea with salty lethal dust. This in turn has poisoned vegetables and drinking water, most harmfully affecting the health and livelihood of the human population around the Aral Sea littoral.

Climate

Marked aridity and much sunshine characterize the region, with rainfall averaging only 8 inches (200 mm) annually. Most rain falls in winter and spring, with higher levels in the mountains and minimal amounts over deserts. The average July temperature is 90 °F (32 °C), but daytime air temperatures in Tashkent and elsewhere frequently surpass 104 °F (40 °C). Bukhara’s high summer heat contrasts with the cooler temperatures in the mountains. In order to accommodate to these patterns, Uzbeks favour houses with windows facing away from the sun but open to porches and tree-filled courtyards shut off from the streets.

Although more than 600 streams crisscross Uzbekistan, the climate strongly affects drainage, because river water rapidly escapes through evaporation and filtration or runs off into irrigation systems.

Plant and animal life

Vegetation patterns in Uzbekistan vary largely according to altitude. The lowlands in the west have a thin natural cover of desert sedge and grass. The high foothills in the east support grass, and forests and brushwood appear on the hills. Forests cover less than 8 percent of Uzbekistan’s area. Animal life in the deserts and plains includes rodents, foxes, wolves, and occasional gazelles and antelopes. Boars, roe deer, bears, wolves, Siberian goats, and some lynx live in the high mountains.

Ethnic groups

Uzbeks make up more than four-fifths of the population, followed by Tajiks, Kazakhs, Tatars, Russians, and Karakalpaks. Uzbeks are the least Russified of the Turkic peoples formerly under Soviet rule, and virtually all of them still claim Uzbek as their primary language.

Languages

The Uzbeks speak a language belonging to the southeastern, or Chagatai (Turki), branch of the Turkic language group. Karakalpak, a distantly related Turkic language, enjoys official status alongside Uzbek in Karakalpakstan, where it is spoken by about half a million people. About one-seventh of the population of Uzbekistan speaks Russian.

Religion

The Uzbeks are Sunni Muslims, and they are considered to be among the most devout Muslims in all of Central Asia. Thus, about three-fourths of the population is Muslim. Slightly less than one-tenth of the population is Eastern Orthodox Christian, and the remainder of the people consider themselves nonreligious or follow other religions.

Settlement patterns

Most of the population lives in the eastern half of the country. Heavily populated oases and foothill basins are covered with an extensive network of canals intersecting fields, orchards, and vineyards. The fertile Fergana Valley in the extreme east, the most populous area in Central Asia, supports both old and new cities and towns and traditional rural settlements. Much of Karkalpakstan, in the west, is under threat of depopulation caused by the environmental poisoning of the Aral Sea area.

Roughly half of the population of Uzbekistan lives in urban areas; the urban population has a disproportionately high number of non-Uzbeks. Slavic peoples Russians, Ukrainians, and Belarusians—held a large proportion of administrative positions. In the late 1980s and early ’90s, many Russians and smaller numbers of Jews emigrated from Uzbekistan and other Central Asian states, changing the ethnic balance and employment patterns in the region.

The cities of Samarkand, Bukhara, and Tashkent have histories that extend back to ancient times. Andijon (Andizhan), Khiva, and Qŭqon (Kokand) also have served the region as cultural, political, and trade centres for centuries. Soviet-era architects purposely laid out some newer towns, including Chirchiq, Angren, Bekobod, and Nawoiy (Navoi), close to rich mineral and energy resources. Soviet planners also sited Yangiyul, Guliston, and Yangiyer in areas that produce and process cotton and fruit.

Demographic trends

Uzbekistan’s population remains youthful in comparison with those of the western parts of the former Soviet Union, though the population aged slightly and steadily over the decades following its independence. Nearly half the population is in the age range of 25–54. This age structure results from the high birth rate after independence: of all the former Soviet republics, Uzbekistan had the greatest number of mothers with 10 or more living children under the age of 20. The birth rate has since decreased.

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Score: https://www.britannica.com/place/Uzbekistan