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Pinus Pumila × P. Sibirica
''Pinus pumila'' × ''P. sibirica'' is a putative hybrid of Japanese stone pine (''P. pumila'') and Siberian pine (''P. sibirica''). It has not yet been officially described. Description ''Pinus pumila'' × ''P. sibirica'' is a small tree about tall with a broad open crown, and dark brown bark. The trunk is not vertical, it is often curved. Maximum height (from 1.5 to 3 m depending on light and soil conditions) is reached at 100–150 years, and then height remains more or less constant. Once the tree reaches a height of 4–5 m (rarely 6–7 m and higher) damage to the branches becomes inevitable. The broken branches can take root, the ability to produce specialized roots from latent buds inherited from ''P. pumila''. These traits vary among sites where the hybrids are found. The pine cones of the tree resemble the cones of the Siberian pine (''P. sibirica''). The cones are larger and thicker and not as much elongated as Japanese stone pine (''P. pumila'') cones. On aver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Pumila
''Pinus pumila'', commonly known as the Siberian dwarf pine, dwarf Siberian pine, dwarf stone pine, Japanese stone pine, or creeping pine, is a tree in the family Pinaceae native to northeastern Asia and the Japanese isles. It shares the common name ''creeping pine'' with several other plants. Description The Siberian dwarf pine is a coniferous evergreen shrub ranging from in height, exceptionally up to , but may have individual branches that extend further along the ground in length. In the mountains of northern Japan, it sometimes hybridizes with the related Japanese white pine ('' Pinus parviflora''); these hybrids (''Pinus'' × ''hakkodensis'') are larger than ''P. pumila'', reaching tall on occasion. The leaves are needle-like, formed in bundles of five and are 4–6 centimeters long. The cones are 2.5–4.5cm long, with large nut-like seeds ( pine nuts). Distribution The range covers the Far East, Eastern Siberia, north-east of Mongolia, north-east of China, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dormancy
Dormancy is a period in an organism's Biological life cycle, life cycle when growth, development, and (in animals) physical activity are temporarily stopped. This minimizes metabolism, metabolic activity and therefore helps an organism to conserve energy. Dormancy tends to be closely associated with Ecosystem, environmental conditions. Organisms can synchronize entry to a dormant phase with their Ecosystem, environment through predictive or consequential means. Predictive dormancy occurs when an organism enters a dormant phase ''before'' the onset of adverse conditions. For example, photoperiod and decreasing temperature are used by many plants to predict the onset of winter. Consequential dormancy occurs when organisms enter a dormant phase ''after'' adverse conditions have arisen. This is commonly found in areas with an unpredictable climate. While very sudden changes in conditions may lead to a high mortality rate among animals relying on consequential dormancy, its use can be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interspecific Plant Hybrids
Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organisms or constituents of living organisms of being special or doing something special. Each animal or plant species is special. It differs in some way from all other species...biological specificity is the major problem about understanding life." Biological specificity within ''Homo sapiens'' ''Homo sapiens'' has many characteristics that show the biological specificity in the form of behavior and morphological traits. Morphologically, humans have an enlarged cranial capacity and more gracile features in comparison to other hominins. The reduction of dentition is a feature that allows for the advantage of adaptability in diet and survival. As a species, humans are culture dependent and much of human survival relies on the culture and soci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. ''World Flora Online'' accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as current, with additional synonyms, and ''Plants of the World Online'' 126 species-rank taxa (113 species and 13 nothospecies), making it the largest genus among the conifers. The highest species diversity of pines is found in Mexico. Pines are widely distributed in the Northern Hemisphere; they occupy large areas of boreal forest, but are found in many habitats, including the Mediterranean Basin, and dry tropical forests in southeast Asia and Central America. Wood from pine trees is one of the most extensively used types of timber, and some pines are widely used as Christmas trees. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybridization In Pines
Both naturally and artificially occurring pine species ''Pine, (Pinus)'' can Hybrid (biology), hybridize, combining their genetic material and sometimes creating hybrids that can be more or less Heterosis, vigorous than their parent species. An example of a naturally occurring hybrid pine is ''Pinus × sondereggeri,'' a naturally occurring cross between loblolly pine (''P. taeda'') and longleaf pine (''P. palustris''). An example of the many artificial hybrids is ''Pinus lambertiana'' × ''Pinus armandii, P. armandii.'' Subgenus ''Pinus'' Includes both natural and artificial pine hybrids. Subsection ''Pinus'' *''Pinus nigra'' × ''P. resinosa'' – Pinus nigra, Austrian pine × Pinus resinosa, red pine *''Pinus densiflora'' × ''P. nigra'' ''–'' Pinus densiflora, Japanese Red pine × Austrian pine *''Pinus'' × ''densithunbergii'', ''Pinus densiflora'' × ''P. thunbergii'' ''–'' Japanese Red pine × Pinus thunbergii, Japanese black pine *''Pinus'' × ''neilreichiana, Pinu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chertovo Lake
Chyortovo or Chertovo () may refer to: *Lake Chyortovo Lake Chyortovo or Lozil-To, also known as "Chertovo" (, meaning "Devil's Lake"; Selkup language, Selkup: Лозыль'-то) is a freshwater lake in Yamalo-Nenets Autonomous Okrug, Russia.Google Earth The lake is a traditional sacred site for the ..., a lake in Yamalo-Nenets Autonomous Okrug, Russia * Chertovo Gorodishche, a rock formation in Sverdlovsk Oblast, Russia * Chyortovo koleso, a 1926 Soviet film {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depression (geology)
In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Types Erosion-related: * Blowout (geomorphology), Blowout: a depression created by Aeolian processes, wind erosion typically in either a partially vegetated Dune, sand dune ecosystem or dry soils (such as a post-glacial loess environment). * Glacial valley: a depression carved by erosion by a glacier. * River valley: a depression carved by fluvial erosion by a river. * Area of subsidence caused by the collapse of an underlying structure, such as sinkholes in karst terrain. * Sink (geography), Sink: an endorheic depression generally containing a wikt:persistent, persistent or intermittent (seasonal) lake, a Salt pan (geology), salt flat (playa) or dry lake, or an ephemeral lake. * Panhole: a shallow depression or basin eroded into flat or gently sloping, cohesive rock.Twidale, C.R., and Bourne, J.A., 2018Rock basins (gnammas) revisited.''Géomorphologie: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Line
The tree line is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually low temperatures, extreme snowpack, or associated lack of available moisture). The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed Canopy (biology), canopy. At the tree line, tree growth is often sparse, stunted, and deformed by wind and cold. This is sometimes known as (German for "crooked wood"). The tree line often appears well-defined, but it can be a more gradual transition. Trees grow shorter and often at lower densities as they approach the tree line, above which they are unable to grow at all. Given a certain latitude, the tree line is approximately 300 to 1000 meters below the permanent snow line and roughly parallel to it. Causes Due to their vertical s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buryatia
Buryatia, officially the Republic of Buryatia, is a republic of Russia located in the Russian Far East. Formerly part of the Siberian Federal District, it has been administered as part of the Far Eastern Federal District since 2018. To its north lie Irkutsk Oblast and Lake Baikal, the deepest lake in the world; Zabaykalsky Krai to the east; Tuva to the west and Mongolia to the south. Its capital is the city of Ulan-Ude. It has an area of with a population of 978,588 ( 2021 Census). It is home to the indigenous Buryats. Geography The republic is located in the south-central region of Siberia along the eastern shore of Lake Baikal. *Area: *Borders: **Internal: Irkutsk Oblast (W/NW/N), Zabaykalsky Krai (NE/E/SE/S), Tuva (W) **International: Mongolia ( Bulgan Province, Khövsgöl Province and Selenge Province) (S/SE) **Water: Lake Baikal (N) *Highest point: Mount Munku-Sardyk () Rivers Major rivers include: * Barguzin River * Irkut River * Kitoy River * Oka River * Sele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sakha Republic
Sakha, officially the Republic of Sakha (Yakutia), is a republics of Russia, republic of Russia, and the largest federal subject of Russia by area. It is located in the Russian Far East, along the Arctic Ocean, with a population of one million. Sakha comprises half of the area of its governing Far Eastern Federal District, and is the world's List of country subdivisions by area, largest country subdivision, covering over 3,083,523 square kilometers (1,190,555 sq mi). ''Sakha'' following regular sound changes in the course of development of the Yakut language) as the Evenk and Yukaghir exonyms for the Yakuts. It is pronounced as ''Haka'' by the Dolgans, Dolgan language, whose language is a close relative of the Yakut language.Victor P. Krivonogov, "The Dolgans’Ethnic Identity and Language Processes." ''Journal of Siberian Federal University'', Humanities & Social Sciences 6 (2013 6) 870–888. Geography * ''Borders'': ** ''internal'': Chukotka Autonomous Okrug (660 km) ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irkutsk Oblast
Irkutsk Oblast (; ) is a federal subjects of Russia, federal subject of Russia (an oblast), located in southeastern Siberia in the basins of the Angara River, Angara, Lena River, Lena, and Nizhnyaya Tunguska Rivers. The administrative center is the types of inhabited localities in Russia, city of Irkutsk. It had a population of 2,370,102 at the Russian Census (2021), 2021 Census. Geography Irkutsk Oblast borders the Republic of Buryatia and the Tuva Republic in the south and southwest, which separate it from Khövsgöl Province, Mongolia; Krasnoyarsk Krai in the west; the Sakha Republic in the northeast; and Zabaykalsky Krai in the east. Lake Baikal, the oldest and deepest lake in the world (containing over a fifth of Earth's fresh liquid surface water), is located in the southeast of the region. It is drained by the Angara River, Angara, which flows north across the province; the outflow rate is controlled by the Irkutsk Dam. The two other major dams on the Irkutsk Oblast's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
