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Lena–Vilyuy Lowland
The Central Yakutian LowlandJohn Kimble (ed.), ''Cryosols: Permafrost-Affected Soils'' or Central Yakutian Lowlands (russian: Центральноякутская равнина; sah, Саха сирин ортоку намтала), also known as Central Yakut Plain or Vilyuy Lowland, is a low alluvial plain in Siberia, Russia. Administratively the territory of the lowland is part of the Sakha Republic (Yakutia). It is an extensive plain located in the transition zone between Central and Eastern Siberia and is one of the Great Russian Regions. The main city is Yakutsk, with a number of settlements near it, but the area of the lowland is largely uninhabited elsewhere.Google Earth Geography The Central Yakutian Lowlands extend along the middle basin of the Lena River and partly further downstream and are about in length and wide. They drop gradually from the Central Siberian Plateau to the west and the Lena Plateau to the south and southwest. To the northwest the lowland merges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vilyuy District
Vilyuysky District (russian: Вилю́йский улу́с; sah, Бүлүү улууһа, ''Bülüü uluuha'', ) is an administrativeConstitution of the Sakha Republic and municipalLaw #172-Z #351-III district (raion, or ''ulus''), one of the administrative divisions of the Sakha Republic, thirty-four in the Sakha Republic, Russia. It is located in the western central part of the republic and borders with Zhigansky District in the northeast, Kobyaysky District in the east, Gorny District in the south, Verkhnevilyuysky District in the west, and with Olenyoksky District in the northwest. The area of the district is .Registry of the Administrative-Territorial Divisions of the Sakha Republic Its administrative center is the types of inhabited localities in Russia, town of Vilyuysk. Population: 25,696 (Russian Census (2002), 2002 Census); The population of Vilyuysk accounts for 40.6% of the district's total population. Geography Main rivers in the district include the Vilyuy River, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Soviet Encyclopedia
The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya entsiklopediya'' (or '' Great Russian Encyclopedia'') in an updated and revised form. The GSE claimed to be "the first Marxist–Leninist general-purpose encyclopedia". Origins The idea of the ''Great Soviet Encyclopedia'' emerged in 1923 on the initiative of Otto Schmidt, a member of the Russian Academy of Sciences. In early 1924 Schmidt worked with a group which included Mikhail Pokrovsky, (rector of the Institute of Red Professors), Nikolai Meshcheryakov (Former head of the Glavit, the State Administration of Publishing Affairs), Valery Bryusov (poet), Veniamin Kagan (mathematician) and Konstantin Kuzminsky to draw up a proposal which was agreed to in April 1924. Also involved was Anatoly Lunacharsky, People's Commissar of Education ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyugyuene
The Tyugyuene (russian: Тюгюэне or Тюгене; sah, Түгүөнэ, ''Tügüöne'') is a river in Yakutia (Sakha Republic), Russia. It is a tributary of the Lena with a length of and a drainage basin area of . The river marks the border between Gorny and Kobyaysky Districts in a stretch of its middle course. The name of the river is based on the Evenk word ''"tagin"'' (тагин), meaning "swamp". Course The Tyugyuene is a left tributary of the Lena. It has its origin at the confluence of the long Ysyakh-Yuryage and Kupsuyu-Yuryakh streams, at an altitude of about in the northeastern part of the Lena Plateau, southwest of the abandoned village of Abaranda. It heads first a roughly northern direction to the east of the Lungkha in its upper course, then it bends northeastwards in its middle course across the Central Yakutian Lowland, changing again to northwards. There are small lakes in the broad floodplain of the lower course of the river, and it meanders s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lungkha
The Lungkha (russian: Лунгха; sah, Луҥха, ''Luŋxa'') is a river in Yakutia (Sakha Republic), Russia. It is the 14th longest tributary of the Lena with a length of — counting its Yychaky tributary. Its drainage basin area is . A331 highway passes close to the river near its origin. The villages of Oyun-Unguokhtakh, Argas and Taas-Tumus are located by the river. The last stretch of the Lungkha is navigable. Course The Lungkha is a left tributary of the Lena. It is formed at the confluence of the Yychaky and Yulagir rivers in the northern part of the Lena Plateau. It flows in a roughly northeastern direction roughly parallel to the Tyugyuene to the east. In its middle course it descends into the Central Yakutian Lowland where it meanders within a wide floodplain parallel to the lower course of the Vilyuy further north. Finally it meets the left bank of the Lena from its mouth and upstream from the mouth of the Vilyuy. The river basin is fed by rain and snow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aldan River
The Aldan (russian: Алдан) is the second-longest, right tributary of the Lena in the Sakha Republic in eastern Siberia.Алдан (река в Якут. АССР) The river is long, of which around is navigable. It has a drainage basin of . The river was part of the River Route to . In 1639 |
Amga River
The Amga (russian: Амга; sah, Амма) is a river in Sakha (Yakutia), Russia. The length of the river is . The area of its basin is . The Amga freezes up in the first half of October and stays under the ice until May. Many different kinds of Fish can be found in the Amga river. Course The river has its source in the Aldan Highlands. It forms the eastern limit of the Lena Plateau. It is the biggest tributary of the Aldan, which it joins on the left bank a few miles west of Khandyga.Приленское плато, Great Soviet Encyclopedia See also *List of rivers of Russia Russia can be divided into a European and an Asian part. The dividing line is generally considered to be the Ural Mountains. The European part is drained into the Arctic Ocean, Baltic Sea, Black Sea, and Caspian Sea. The Asian part is drained into ... References External links * Rivers of the Sakha Republic Central Yakutian Lowland {{Russia-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vilyuy River
The Vilyuy ( rus, Вилю́й, p=vʲɪˈlʲʉj; sah, Бүлүү, ''Bülüü'', ) is a river in Russia, the longest tributary of the Lena. About long, it flows mostly within the Sakha Republic. Its basin covers about . History The river is first mentioned in the 17th century in connection with the Russian conquest of Siberia. In 1634, Russian Cossacks, headed by Voin Shakhov, established a winter settlement at the confluence of the rivers Vilyuy and Tyukyan. This settlement served as the administrative center of the area for several decades, after which it was moved to the Yolyonnyokh area down by the Vilyuy, where the ''ostrog'' (fortified settlement) of Olensk (now Vilyuysk) was founded in 1773. In the 1950s, diamond deposits were discovered in the area, about from its mouth. This led to the construction of the Mir Mine, together with access roads and an airport, and the Vilyuy Dam complex to generate power needed for the diamond concentrators.A. GavrilovВилюйin: Gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Salinity
Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean. It can also come about through artificial processes such as irrigation and road salt. Natural occurrence Salts are a natural component in soils and water. The ions responsible for salination are: Na+, K+, Ca2+, Mg2+ and Cl−. Over long periods of time, as soil minerals weather and release salts, these salts are flushed or leached out of the soil by drainage water in areas with sufficient precipitation. In addition to mineral weathering, salts are also deposited via dust and precipitation. Salts may accumulate in dry regions, leading to naturally saline soils. This is the case, for example, in large parts of Australia. Human practices can increase the salinity of soils by the addition of salts in i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolian Processes
Aeolian processes, also spelled eolian, pertain to wind activity in the study of geology and weather and specifically to the wind's ability to shape the surface of the Earth (or other planets). Winds may erode, transport, and deposit materials and are effective agents in regions with sparse vegetation, a lack of soil moisture and a large supply of unconsolidated sediments. Although water is a much more powerful eroding force than wind, aeolian processes are important in arid environments such as deserts. The term is derived from the name of the Greek god Aeolus, the keeper of the winds. Definition and setting ''Aeolian processes'' are those processes of erosion, transport, and deposition of sediments that are caused by wind at or near the surface of the earth. Sediment deposits produced by the action of wind and the sedimentary structures characteristic of these deposits are also described as ''aeolian''. Aeolian processes are most important in areas where there is little or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tukulan
Tukulans ( rus, Тукуланы; sah, Тукулаан) are relief forms shaped by aeolian processes of the Central Yakutian Lowland, Yakutia, Russian Federation. They are sand dunes of a characteristic type mainly found along the valley of the Lena River, in the area of the lower Vilyuy river. Tukulans come in the form of isolated dunes, but also as large sand-covered areas in certain spots of the plain, often among the trees of the taiga. The largest of the dunes lies at near the Linde River and reaches almost in length. Google Earth History Tukulans were first described in 1927 by pioneering researcher Sergei Kuznetsov during an expedition surveying Yakutia sent by the government of the USSR. Kuzntesov published a paper calling attention on them. A few years later academicians Andrei Grigoryev of the Academy of Sciences of the Soviet Union and Tikhon Rabotnov of Moscow State University continued the study of these landforms, but they were faced with the problem that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgunnyakh
Pingos are intrapermafrost ice-cored hills, high and in diameter. They are typically conical in shape and grow and persist only in permafrost environments, such as the Arctic and subarctic. A pingo is a periglacial landform, which is defined as a non-glacial landform or process linked to colder climates. It is estimated that there are more than 11,000 pingos on Earth. The Tuktoyaktuk peninsula area has the greatest concentration of pingos in the world with a total of 1,350 pingos. There is currently remarkably limited data on pingos. History In 1825, John Franklin made the earliest description of a pingo when he climbed a small pingo on Ellice Island in the Mackenzie Delta. However, it was in 1938 that the term ''pingo'' was first borrowed from the Inuvialuit by the Arctic botanist Alf Erling Porsild in his paper on Earth mounds of the western Arctic coast of Canada and Alaska. Porsild Pingo in Tuktoyaktuk is named in his honour. The term pingos, which in Inuvialuktun m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alas (geography)
Alas ( sah, Алаас) is a shallow depression which occurs primarily in Yakutia, which is formed by subsidence of the Arctic permafrost owing to repeated melting and refreezing. An alas first develops as a shallow lake as melt water fills the depression. The lake eventually dries out and is replaced by grasses and other herbaceous vegetation. Examples An alas is different from thermokarst depressions found elsewhere in the Arctic in that the lake is only temporary. Due to the aridity of Yakutia, the lake will dry up once the underlying ice has been depleted. Alases are often used for pasturage for horses as well as hay-fields. They are common in the Central Yakutian Lowland. The largest alas in the world is Myuryu, located in Ust-Aldan District. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
