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The Caspian lowland desert ecoregion (WWF ID: PA1308) covers the north and southeast coasts of the Caspian Sea, including the deltas of the Volga River and Ural River in the northern region. While the region gets relatively low amounts of precipitation (less than 200 mm/year), wildlife is supported by the river estuaries and the sea itself.
The North Caspian depression is part of the continental or semi-arid desert biome. The area receives 300 mm (12 in) of rain per year, on average, and less than 10% of the region is irrigated. The Caspian Depression is below sea level, consisting of large areas of marshlands in the eastern region.
Dagestan is located in the Caspian lowland desert ecoregion. This ecoregion covers the coastal desert - sand dunes, salt deserts, solonchaks (shors) and clay deserts - on the north and east shores of the Caspian Sea. Vegetation is sparse, but highly specialized with mostly halophytes (salt-tolerant plants), shrubs and semi-shrubs.
The Central Asian southern desert ecoregion (WWF ID: PA1312) is an arid but ecologically active region between the east coast of the Caspian Sea and steppes at the base of the mountains of central Asia. Most of Turkmenistan and eastern Uzbekistan is in this ecoregion.
Map of Cao Bang province in 1909. Cao Bằng's history can be traced to the Bronze Age when the Tày Tây Âu Kingdom flourished. The Tây Âu or Âu Việt were a conglomeration of upland Tai tribes living in what is today the mountainous region of northernmost Vietnam, western Guangdong, and southern Guangxi, China, since at least the 3rd century BC.
The ecoregion lies mostly in the Kura-Aras Lowland, drained by the Kura River which flows eastward to empty into the Caspian Sea, and its southern tributary the Aras.It is bounded on the north by the Caucasus range, on the west by the Lesser Caucasus, and on the southwest by the Armenian Highlands, on the south by the Elburz Range, and on the east by the Caspian Sea. 70% of the ecoregion is ...
The Tày people, also known as the Thổ, T'o, Tai Tho, Ngan, Phen, Thu Lao, or Pa Di, is a Central Tai-speaking ethnic group who live in northern Vietnam. According to a 2019 census, there are 1.8 million Tày people living in Vietnam. [6] This makes them the second largest ethnic group in Vietnam after the majority Kinh (Vietnamese) ethnic group.
Like in other Tai societies, the core social units of the Tai Dam, Tai Dón and Tai Daeng were the village (ban) and the chiefdom (mueang, Vietnamese mường), each consisting of several villages and ruled by a feudal lord (chao). Their base of life was wet rice cultivation, which is why the Tai settled in valleys alongside the course of rivers.