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Lake Syvash
The Syvash or Sivash (Russian and Ukrainian: ; , Cyrillic: Сываш, "dirt"), also known as the or (, ''Gniloye More''; , ''Hnyle More''; , Cyrillic: Чюрюк Денъиз), is a large area of shallow lagoons on the west coast of the Sea of Azov. Separated from the sea by the narrow Arabat Spit, the water of the Syvash covers an area of around and the entire area spreads over about . The Henichesk Strait is its eastern connection to the Sea of Azov. The Syvash borders the northeastern coast of the main Crimean Peninsula. Central and Eastern Syvash were registered as wetlands of Ukraine under the Ramsar Convention; however, after the 2014 Russian annexation of Crimea they became subject to a territorial dispute. Since the 2022 Russian invasion of Ukraine, the entire Syvash has been occupied by Russia. Overview The Syvash nearly cuts the Crimean Peninsula off from the mainland, serving as a natural border for its autonomous republic. The long () and narrow () Arabat Spit r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Azov
The Sea of Azov ( Crimean Tatar: ''Azaq deñizi''; russian: Азовское море, Azovskoye more; uk, Азовське море, Azovs'ke more) is a sea in Eastern Europe connected to the Black Sea by the narrow (about ) Strait of Kerch, and is sometimes regarded as a northern extension of the Black Sea. The sea is bounded by Russia on the east, by Ukraine on the northwest and southwest. The sea is largely affected by the inflow of the Don, Kuban, and other rivers, which bring sand, silt, and shells, which in turn form numerous bays, limans, and narrow spits. Because of these deposits, the sea bottom is relatively smooth and flat with the depth gradually increasing toward the middle. Also, due to the river inflow, water in the sea has low salinity and a high amount of biomass (such as green algae) that affects the water colour. Abundant plankton result in unusually high fish productivity. The sea shores and spits are low; they are rich in vegetation and bird colonie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isthmus Of Perekop
The Isthmus of Perekop, literally Isthmus of the Trench ( uk, Перекопський перешийок; transliteration: ''Perekops'kyy pereshyyok''; russian: Перекопский перешеек; transliteration: ''Perekopskiy peresheek,'' crh, Or boynu, tr, Orkapı; ; transliteration: ''Taphros'') is the narrow, wide strip of land that connects the Crimean Peninsula to the mainland of Ukraine. The isthmus projects between the Black Sea to the west and the Sivash to the east. The isthmus takes its name of "Perekop" from the Tatar fortress of Or Qapi. The border between Ukraine's Autonomous Republic of Crimea and Kherson Oblast runs through the northern part of the isthmus. Since the Russian military annexation of Crimea in 2014, this is also the de facto northern border of the Russian Republic of Crimea. The cities of Perekop, Armyansk, and Krasnoperekopsk are situated on the isthmus. The North Crimean Canal ran through the isthmus, supplying Crimea with fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reed (plant)
Reed is a common name for several tall, grass-like plants of wetlands. Varieties They are all members of the order Poales (in the modern, expanded circumscription), and include: In the grass family, Poaceae * Common reed (''Phragmites australis''), the original species named reed * Giant reed (''Arundo donax''), used for making reeds for musical instruments * Burma reed (''Neyraudia reynaudiana'') * Reed canary-grass (''Phalaris arundinacea'') * Reed sweet-grass (''Glyceria maxima'') * Small-reed (''Calamagrostis'' species) In the sedge family, Cyperaceae * Paper reed or papyrus ('' Cyperus papyrus''), the source of the Ancient Egyptian writing material, also used for making boats In the family Typhaceae * Bur-reed (''Sparganium'' species) * Reed-mace (''Typha'' species), also called bulrush or cattail In the family Restionaceae * Cape thatching reed ('' Elegia tectorum''), a restio originating from the South-western Cape, South Africa. * Thatching reed (''Thamnochortus ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunaliella Salina
''Dunaliella salina'' is a type of halophile green unicellular micro-algae especially found in hypersaline environments, such as salt lakes and salt evaporation ponds. Known for its antioxidant activity because of its ability to create large amount of carotenoids, it is responsible for most of the primary production in hypersaline environments worldwide, and is also used in cosmetics and dietary supplements. History ''Dunaliella salina'' was named by Emanoil C. Teodoresco of Bucharest, Romania after its original discoverer, Michel Felix Dunal, who first scientifically reported sighting the organism in saltern evaporation ponds in Montpellier, France in 1838. He initially named the organism ''Haematococcus salinus'' and ''Protococcus''. The organism was fully described as a new, separate genus simultaneously by Teodoresco and Clara Hamburger of Heidelberg, Germany in 1905. Teodoresco was the first to publish his work, so he is generally given credit for this categorization. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perekop-Chongar Operation
The siege of Perekop, also known as the Perekop-Çonğar Operation, was the final battle of the Southern Front in the Russian Civil War from 7 to 17 November 1920. The White movement's stronghold on the Crimean Peninsula was protected by the Çonğar fortification system along the strategic Isthmus of Perekop and the Sıvaş, from which the Crimean Corps under General Yakov Slashchov repelled several Red Army invasion attempts in early 1920. The Southern Front of the Red Army and the Revolutionary Insurgent Army of Ukraine, under the command of Mikhail Frunze, launched an offensive on Crimea with an invasion force four-times larger than the defenders, the Russian Army under the command of General Pyotr Wrangel. Despite suffering heavy losses, the Reds broke through the fortifications, and the Whites were forced into retreat southwards. Following their defeat at the siege of Perekop, the Whites evacuated from the Crimea, dissolving the Army of Wrangel and ending the Southern F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Army
The Workers' and Peasants' Red Army (Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, after 1922, the Union of Soviet Socialist Republics. The army was established in January 1918. The Bolsheviks raised an army to oppose the military confederations (especially the various groups collectively known as the White Army) of their adversaries during the Russian Civil War. Starting in February 1946, the Red Army, along with the Soviet Navy, embodied the main component of the Soviet Armed Forces; taking the official name of "Soviet Army", until its dissolution in 1991. The Red Army provided the largest land force in the Allied victory in the European theatre of World War II, and its invasion of Manchuria assisted the unconditional surrender of Imperial Japan. During operations on the Eastern Front, it accounted for 75–80% of casual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Civil War
, date = October Revolution, 7 November 1917 – Yakut revolt, 16 June 1923{{Efn, The main phase ended on 25 October 1922. Revolt against the Bolsheviks continued Basmachi movement, in Central Asia and Tungus Republic, the Far East through the 1920s and 1930s.{{cite book, last=Mawdsley, first=Evan, title=The Russian Civil War, location=New York, publisher=Pegasus Books, year=2007, isbn=9781681770093, url=https://archive.org/details/russiancivilwar00evan, url-access=registration{{rp, 3,230(5 years, 7 months and 9 days) {{Collapsible list , bullets = yes , title = Peace treaties , Treaty of Brest-LitovskSigned 3 March 1918({{Age in years, months, weeks and days, month1=11, day1=7, year1=1917, month2=3, day2=3, year2=1918) , Treaty of Tartu (Russian–Estonian)Signed 2 February 1920({{Age in years, months, weeks and days, month1=11, day1=7, year1=1917, month2=2, day2=2, year2=1920) , Soviet–Lithuanian Peace TreatySigned 12 July 1920({{Age in years, months, weeks and da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chongar Strait
The Chongar Strait (russian: Чонгарский пролив; uk, Чонгарська протока) is a short, shallow, narrow strait separating the eastern and western portions of the Syvash, the shallow lagoon system separating the Crimea from the mainland east of the Isthmus of Perekop. Overview The Chongar Strait is about long, varying in width from and is less than deep. The strait separates Chongar Peninsula in the north (on the mainland of Ukraine, and containing the village of Chongar) from the Tup-Dzhankoi Peninsula in the south (in the Crimea). Two bridges cross the strait. One carries (in peacetime) the Ukrainian M18 highway (not to be confused with the Russian M18 highway), which is part of European route E105 running from northern Norway to Yalta. The other bridge is abandoned. During the Russian Civil War, the Chongar Strait was one avenue of attack during the Perekop-Chongar Operation in November 1920 and was crossed by the Soviet 30th Rifle Division. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solonets
Solonetz ( uk, Солонець, rus, Солоне́ц, p=səlɐˈnʲɛts) is a Reference Soil Group of the World Reference Base for Soil Resources (WRB). They have, within the upper 100 cm of the soil profile, a so-called "natric horizon" ("natrium" is the Latin term for sodium). There is a subsurface horizon (subsoil), higher in clay content than the upper horizon, that has more than 15% exchangeable sodium. The name is based on the Russian соль (sol, meaning salt). Ukrainian folk word "solontsi" means salty soil. In Ukraine there are many villages that are called Solontsі. Solonetz zones are associated with Gleysols, Solonchaks and Kastanozems. In USDA soil taxonomy, Solonetz corresponds to sodium-rich Alfisols. See also * Chott *Salt marsh *Soil salinity *Solonchak *Takir Takir (takyr) (russian: такыр, originally from Kazakh or another Turkic language) meaning "smooth, even, or bare", is a type of relief occurring in the deserts of Central Asia, similar to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ramsar Wetlands Of International Importance
This is the list of Wetlands of International Importance as defined by the Ramsar Convention for the conservation and sustainable use of wetlands, recognizing the fundamental ecological functions of wetlands and their economic, cultural, scientific, and recreational value. The convention establishes that "wetlands should be selected for the list on account of their international significance in terms of ecology, botany, zoology, limnology or hydrology." Over the years, the Conference of the Contracting Parties has adopted more specific criteria interpreting the convention text. The Ramsar List organizes the Ramsar sites according to the contracting party that designated each to the list. Contracting parties are grouped into six "regions": Africa, Asia, Europe, Latin American and the Caribbean, North America, and Oceania. , 170 states have acceded to the convention and designated 2,471 sites to the list, covering ; two other states have acceded to the convention but have yet to des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or seawater, saltwater. The main w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metric Ton
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton (United States customary units), and the long ton ( British imperial units). It is equivalent to approximately 2204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States |
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