Tajikistan, officially Republic of Tajikistan, Tajik Tojikiston or Jumhurii Tojikiston, Tajikistan also spelled Tadzhikistan, country lying in the heart of Central Asia. It is bordered by Kyrgyzstan on the north, China on the east, Afghanistan on the south, and Uzbekistan on the west and northwest. Tajikistan includes the Gorno-Badakhshan (“Mountain Badakhshan”) autonomous region, with its capital at Khorugh (Khorog). Tajikistan encompasses the smallest amount of land among the five Central Asian states, but in terms of elevation it surpasses them all, enclosing more and higher mountains than any other country in the region. Tajikistan was a constituent (union) republic of the Soviet Union from 1929 until its independence in 1991. The capital is Dushanbe.
Several ethnic ties and outside influences complicate Tajikistan’s national identity to a greater extent than in other Central Asian republics. The Tajik people share close kinship and their language with a much larger population of the same nationality living in northeastern Afghanistan, whose population also includes a large proportion speaking Dari, a dialect of Persian intelligible to Tajiks. Despite sectarian differences (most Tajiks are SunniMuslims, while Iranians are predominantly Shīʿites), Tajiks also have strong ties to the culture and people of Iran; the Tajik and Persian languages are closely related and mutually intelligible. The Tajiks’ centuries-old economic symbiosis with oasis-dwelling Uzbeks also somewhat confuses the expression of a distinctive Tajik national identity.
Relief
More than nine-tenths of Tajikistan’s territory is mountainous; about half lies 10,000 feet (3,000 metres) or more above sea level. The Trans-Alay range, part of the Tien Shan system, reaches into the north. The massive ranges of the southern Tien Shan—the Turkestan Mountains and the slightly lower Zeravshan and Gissar ranges—define the east-central portion of the country. The ice-clad peaks of the Pamir mountain system occupy the southeast. Some of Central Asia’s highest mountains, notably Ibn Sīnā (23,406 feet [7,134 metres]) and Imeni Ismail Samani (24,590 feet [7,495 metres]) peaks, are found in the northern portion of the Pamirs. The valleys, though important for Tajikistan’s human geography, make up less than one-tenth of the country’s area. The largest are the western portion of the Fergana Valley in the north and the Gissar, Vakhsh, Yavansu, Obikiik, Lower Kofarnihon (Kafirnigan), and Panj (Pyandzh) valleys to the south.
The entire southern Central Asian region, including Tajikistan, lies in an active seismic beltwhere severe earthquakes are common. Seismologists have long studied the region, especially in connection with the massive hydroelectric dams and other public works in the area.
Climate
The climate of Tajikistan is sharply continental and changes with altitude. In the warm-temperate valley areas, summers are hot and dry; the mean temperature in July is 81 °F (27 °C) in Khujand (Khojand) and 86 °F (30 °C) in Kŭlob (Kulyab), farther south. The corresponding January figures are 30 °F (−1 °C) and 36 °F (2 °C), respectively. In very cold winters, temperatures of −4 °F (−20 °C) and lower have been recorded. Annual precipitation is slight and ranges between 6 and 10 inches (150 and 250 millimetres) but is higher in the Gissar Valley. In the highlands conditions are different: the mean January temperature for Murghob in the Pamirs is −3 °F (−20 °C), and temperatures can drop to −51 °F (−46 °C). In this area precipitation barely reaches 2 to 3 inches a year, most of it falling in summer. Moist air masses move from the west up the valleys, suddenly reaching low-temperature areas and producing locally heavy precipitation, mainly heavy snow of as much as 30 to 60 inches of annual accumulation.
Settlement patterns
Much of Tajikistan is unsuitable for human habitation, but those desert and semidesert lands suitable for irrigated farming have been turned into flourishing oases, with cottonplantations, gardens, and vineyards. The population density is also high in the large villages strung out in clusters along the foothill regions. There are also narrow valleys that support small villages (qishlaqs) surrounded by apple orchards, apricot trees, mulberry groves, and small cultivated fields.
Less than one-third of the country’s Tajiks live in urban areas, including the two largest cities, Dushanbe and Khujand. Smaller towns include the old settlements of Kŭlob, Qŭrghonteppa (Kurgan-Tyube), and Ŭroteppa (Ura-Tyube) and the newer Qayroqqum, Norak, and Tursunzoda. Russians no longer dominate Dushanbe’s ethnic mixture; they constitute less than one-third of the city’s inhabitants. In Tajikistan, as in the rest of Central Asia, there has been a general trend toward ruralization. Since 1970 the urban proportion of the population has declined, in part because the rate of natural population increase is greater among the rural population.
Most Tajiks continue to live in qishlaqs. Such settlements usually consist of 200 to 700 single-family houses built along an irrigation canal or the banks of a river. Traditionally, mud fences surround the houses and flat roofs cover them, and each domicile is closely connected with an adjacent orchard or vineyard. In the mountains the qishlaqs, sited in narrow valleys, form smaller settlements, usually 15 to 20 households. On the steep slopes the flat roof of one house often serves as the yard for the house above it. This mode of home construction makes Tajikistan’s mountain villages especially vulnerable to damage from the frequent strong earthquakes that characterize this region.