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El Coahuilón
El Coahuilón is a mountain located in the municipalities of Arteaga; Coahuila and Rayones; Nuevo León, Mexico; to the northeast of the town Mesa de las Tablas. The mountain is part of the Sierra Madre Oriental. Its altitude is 3,575 meters above sea level, it is the third highest mountain in Coahuila, after Cerro de la Viga and Sierra de la Marta. The ridge is approximately 22 km long with an east–west orientation, similar to others in the area. In May 1975 and in May 1998, wildfires damaged a large portion of the mountain. The reforestation efforts have yielded results, but the forest will take several decades to recover fully. The northern slope is covered by coniferous forests with pine, fir, oaks and other species of evergreen trees and evergreen shrubs; such as Mexican White Pine ''Pinus ayacahuite'', Hartweg's Pine ''Pinus hartwegii'', Mexican Pinyon ''Pinus cembroides'' and Potosi Pinyon ''Pinus culminicola ''Pinus culminicola'', commonly known as Potosí pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arteaga, Coahuila
Arteaga () is a town that is part of the Saltillo metropolitan area located in the Mexican state of Coahuila. It is considered a Pueblo Mágico. It serves as the administrative centre for the surrounding municipality of the same name. Geography It stands some east of state capital Saltillo, on Federal Highways 57 and 54. The municipality covers a total surface area of and, in 1995, reported a total population of 18,907. In addition to the municipal seat, it contains the settlements of San Antonio de las Alazanas, El Tunal, San Juan de los Dolores, Huachichil, Los Lirios, Mesa de Tablas, Bella Unión, Escobedo, and Jamé. Climate Arteaga residents often boast that they have a year-round median temperature of 22 °C (72 °F), and say theirs is the "most perfect" climate in North America. History The area was first inhabited by settlers from Tlaxcala Tlaxcala, officially the Free and Sovereign State of Tlaxcala, is one of the 32 federal entities th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine
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 species distribution, 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 reachin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deserts And Xeric Shrublands
Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. Deserts and xeric (Ancient Greek 'dry') shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than annually except in the margins. Generally evaporation exceeds rainfall in these ecoregions. Temperature variability is also diverse in these lands. Many deserts, such as the Sahara Desert, Sahara, are hot year-round, but others, such as East Asia's Gobi Desert, become quite cold during the winter. Temperature extremes are a characteristic of most deserts. High daytime temperatures give way to cold nights because there is no insulation provided by humidity and cloud cover. The diversity of climatic conditions, though quite harsh, supports a rich array of habitats. Many of these habitats are ephemeral in nature, reflecting the paucity and seasonality of avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Culminicola
''Pinus culminicola'', commonly known as Potosí pinyon or Potosí Piñón, is a pine in the pinyon pine group, native and endemic to northeast Mexico. The range is highly localised, confined to a small area of high summits in the northern Sierra Madre Oriental in Coahuila and Nuevo León, and only abundant on the highest peak, Cerro Potosí (3713 m). It occurs at very high altitudes, from 3000–3700 m, in cool, moist subalpine climate conditions. Description It is a medium-size shrub, reaching 1.5–5 m tall and with a trunk diameter of up to 25 cm. The bark is grey-brown, thin and scaly at the base of the trunk. The leaves ('needles') are in fascicles of five, slender, 3–5.5 cm long, and deep green to blue-green, with stomata confined to a bright white band on the inner surfaces. The cones are globose, 3–4 cm long and broad when closed, green at first, ripening yellow-brown when 16–18 months old, with only a small number of thin, fragile scales, typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Cembroides
''Pinus cembroides'', also known as pinyon pine, Mexican pinyon, Mexican nut pine, and Mexican stone pine, is a pine in the pinyon pine group. It is a small pine growing to about with a trunk diameter of up to . It is native to western North America. It grows in areas with low levels of rainfall and its range extends southwards from Arizona, Texas and New Mexico in the United States into Mexico. It typically grows at altitudes between . The seeds are large and form part of the diet of the Mexican jay and Abert's squirrel. They are also collected for human consumption, being the most widely used pine nut in Mexico. Description ''Pinus cembroides'' is a small to medium-size tree, reaching tall and with a trunk diameter of up to . The bark is dark brown, thick and deeply fissured at the base of the trunk. The leaves ('needles') are in mixed pairs and threes, slender, to long, and dull yellowish green, with stomata on both inner and outer surfaces. The cones are globose, to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Hartwegii
''Pinus hartwegii'' ( syn. ''P. rudis'', ''P. donnell-smithii''), Hartweg's pine, the Mexican mountain pine, or pino de las alturas, is a pine native to the mountains of Mexico and Central America east to Honduras. It is named after Karl Theodor Hartweg, who described it in 1838. Distribution ''Pinus hartwegii'' is a very high elevation species, growing at elevations of . It forms the alpine tree line on most of Mexico's higher mountains. It grows on both the Sierra Madre Occidental and Sierra Madre Oriental (mountain ranges) (29° North latitude) from Chihuahua State and Nuevo León (26°) to the highest peaks in the mountain ranges on the El Salvador—Honduras border (15° North latitude). In the Sierra Madre Occidental this pine grows with very dry winters and a very heavy rainy season in summer, with constant frosts from October to March. This pine does not acquire the dwarfed and contorted shape shared by many species at high elevation. Even at the alpine tree line, this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Ayacahuite
''Pinus ayacahuite'', also called ayacahuite pine and Mexican white pine, (family Pinaceae) is a species of pine native to the mountains of southern Mexico and western Central America, in the Sierra Madre del Sur mountains and the eastern end of the Eje Volcánico Transversal, between 14° and 21°N latitude in the Mexican states of Guerrero, Oaxaca, Puebla, Veracruz and Chiapas, and in Guatemala, El Salvador and Honduras. It grows on relatively moist areas with summer rainfalls, however specimens from its eastern and southern distribution live under really wet conditions; it needs full sun and well drained soils. Its temperature needs fluctuate between 19 and 10 °C on average a year. This tree accepts from subtropical to cool climate. ''Pinus ayacahuite'' is a large tree, regularly growing to 30–45 m and exceptionally up to 50 m tall. It is a member of the white pine group, '' Pinus'' subgenus '' Strobus'', and like all members of that group, the leaves ('needles') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Oak
Live oak or evergreen oak is any of a number of oaks in several different sections of the genus ''Quercus'' that share the characteristic of evergreen foliage. These oaks are generally not more closely related to each other than they are to other oaks. When the term live oak is used in a specific rather than general sense, it most commonly refers to the group of species under ''Quercus'' sect. ''Virentes'', which includes the southern live oak (''Quercus virginiana''), the first species so named, and an icon of the Old South. The name ''live oak'' comes from the fact that evergreen oaks remain green and "live" throughout winter, when other oaks are dormant and leafless. The name is used mainly in North America, where evergreen oaks are widespread in warmer areas along the Atlantic coast from southeast Virginia to Florida, west along the Gulf Coast to Louisiana and Mexico, and across the southwest to California. Evergreen oak species are also common in parts of southern Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical And Subtropical Coniferous Forests
Tropical and subtropical coniferous forests are a tropical forest habitat (ecology), habitat type defined by the World Wide Fund for Nature. These forests are found predominantly in North America, North and Central America and experience low levels of precipitation and moderate variability in temperature. Tropical and subtropical coniferous forests are characterized by diverse species of Pinophyta, conifers, whose needles are adapted to deal with the variable climatic conditions. Most tropical and subtropical coniferous forest ecoregions are found in the Nearctic and Neotropical realms, from Mexico to Nicaragua and on the Greater Antilles, Bahamas, and Bermuda. Other tropical and subtropical Conifer, coniferous forests ecoregions occur in Asia. Mexico harbors the world's richest and most complex subtropical coniferous forests. The conifer forests of the Greater Antilles contain many endemics and relict (biology), relictual taxa. Many migratory birds and butterfly, butterflies spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coahuila
Coahuila, formally Coahuila de Zaragoza, officially the Free and Sovereign State of Coahuila de Zaragoza, is one of the 31 states of Mexico. The largest city and State Capital is the city of Saltillo; the second largest is Torreón and the third largest is Monclova (a former state capital); the fourth largest is Piedras Negras; and the fifth largest is Ciudad Acuña. Coahuila borders the Mexican states of Nuevo León to the east, Zacatecas to the south, and Durango and Chihuahua to the west. To the north, Coahuila accounts for a stretch of the Mexico–United States border, adjacent to the U.S. state of Texas along the course of the Rio Grande (Río Bravo del Norte). With an area of , it is the nation's third-largest state. It comprises 38 municipalities ''(Municipio (Mexico), municipios)''. In the 2020 Census, Coahuila had a population of 3,146,771. History The name Coahuila derives from native terms for the region, and has been known by variations such as Cuagüila and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildfire
A wildfire, forest fire, or a bushfire is an unplanned and uncontrolled fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire (Bushfires in Australia, in Australia), desert fire, grass fire, hill fire, Peat#Peat fires, peat fire, prairie fire, vegetation fire, or veld fire. Some natural forest ecosystems Fire ecology, depend on wildfire. Modern forest management often engages in prescribed burns to mitigate fire risk and promote natural forest cycles. However, controlled burns can turn into wildfires by mistake. Wildfires can be classified by cause of ignition, physical properties, combustible material present, and the effect of weather on the fire. Wildfire severity results from a combination of factors such as available fuels, physical setting, and weather. Climatic cycles with wet periods that create substantial fuels, followed by drought and heat, of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meters Above Sea Level
Height above mean sea level is a measure of a location's vertical distance (height, elevation or altitude) in reference to a vertical datum based on a historic mean sea level. In geodesy, it is formalized as orthometric height. The zero level varies in different countries due to different reference points and historic measurement periods. Climate change and other forces can cause sea levels and elevations to vary over time. Uses Elevation or altitude above sea level is a standard measurement for: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Mining infrastructure, particularly underground. * Flying objects such as airplanes or helicopters below a Transition Altitude defined by local regulations. Units and abbreviations Elevation or altitude is generally expressed as "metres above mean sea level" in the metric system, or "feet above mean sea level" in United States customary and imperial units. Common abbr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
