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Cerro De Oro Dam
The Cerro de Oro Dam ( en, Gold Hill Dam), also called the Miguel de la Madrid Hurtado Dam, is on the Santo Domingo River in the San Juan Bautista Tuxtepec municipality of the Papaloapan Region of Oaxaca state in southern Mexico. The dam operates in conjunction with the Miguel Alemán Dam, located on the Tonto River to control floods in the Papaloapan basin in Veracruz state. Construction began in 1973 and the dam was completed in May 1989. About 26,000 people were displaced by the project. Water quality in the reservoir is poor and deteriorating, affecting fish catches. Purpose The Santo Domingo joins the Valle Nacional River below the dam to form the Papaloapan river, which is joined by the Tonto river to the north of the city of San Juan Bautista Tuxtepec and meanders northeastward through the Veracruz coastal plain to the Gulf of Mexico. The Papaloapan river basin was subject to frequent flooding, with the damage sometimes compounded by cyclones. A particularly severe flood i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santo Domingo River (Oaxaca)
The Santo Domingo River in Oaxaca state, Mexico is one of the main tributaries of the Papaloapan River. It is formed by the confluence of the Salado and Grande rivers, which drain the dry Tehuacán and Cuicatlán valleys west of the Sierra Madre de Oaxaca. The Santo Domingo river flows east through the Sierra Madre, dividing the Sierra Zongolica sub-range to the north from the Sierra Juárez to the south. It joins with the Valle Nacional River above San Juan Bautista Tuxtepec to form the Papaloapan. Carrying sediment from the mountains, it was a major cause of flooding in the coastal plain of Veracruz by reducing the capacity of the Papaloapan to drain the plains. To alleviate these problems, the Cerro de Oro Dam was constructed on the river just above the junction with the Valle Nacional, completed in 1989. The reservoir behind the dam is connected by a channel to Lake Miguel Alemán, the reservoir formed by the Miguel Alemán Dam The Miguel Alemán Dam is on the Tonto River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Mexico
The Gulf of Mexico ( es, Golfo de México) is an oceanic basin, ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States; on the southwest and south by the Mexico, Mexican States of Mexico, states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatan, and Quintana Roo; and on the southeast by Cuba. The Southern United States, Southern U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida, which border the Gulf on the north, are often referred to as the "Third Coast" of the United States (in addition to its Atlantic and Pacific Ocean, Pacific coasts). The Gulf of Mexico took shape approximately 300 million years ago as a result of plate tectonics.Huerta, A.D., and D.L. Harry (2012) ''Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental margin.'' Geosphere. 8(1):GES00725.1, first p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Oaxaca
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Mexico
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophic
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients derive f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrophic
An oligotroph is an organism that can live in an environment that offers very low levels of nutrients. They may be contrasted with copiotrophs, which prefer nutritionally rich environments. Oligotrophs are characterized by slow growth, low rates of metabolism, and generally low population density. Oligotrophic environments are those that offer little to sustain life. These environments include deep oceanic sediments, caves, glacial and polar ice, deep subsurface soil, aquifers, ocean waters, and leached soils. Examples of oligotrophic organisms are the cave-dwelling olm; the bacterium " ''Candidatus'' Pelagibacter communis", which is the most abundant organism in the oceans with an estimated 2 × 1028 individuals in total; and the lichens with their extremely low metabolic rate. Etymologically, the word "oligotroph" is a combination of the Greek adjective ''oligos'' (ὀλίγος) meaning "few" and the adjective ''trophikos'' (τροφικός)) meaning "feeding". Plant adaptatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selva Zoque
The Selva Zoque ( en, Zoque Forest), which includes the Chimalapas rain forest, is an area of great ecological importance in Mexico. Most of the forest lies in the state of Oaxaca but parts are in Chiapas Chiapas (; Tzotzil language, Tzotzil and Tzeltal language, Tzeltal: ''Chyapas'' ), officially the Free and Sovereign State of Chiapas ( es, Estado Libre y Soberano de Chiapas), is one of the states that make up the Political divisions of Mexico, ... and Veracruz. It is the largest tract of tropical rainforest in Mexico, and contains the majority of terrestrial biodiversity in the country. The forest includes the Selva El Ocote, a federally-protected biosphere reserves of Mexico, biosphere reserve, but is otherwise not yet protected. Despite the rich ecology of the region, a 2003 study that focused on bird populations stated that "the fauna of the heart of the Chimalapas, including its vast rainforests, have seen little or no study". As it is an impoverished region, efforts to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uxpanapa
Uxpanapa is a municipality in the southeastern part of the state of Veracruz, adjacent to the state of Oaxaca), in Mexico. It is bordered by the municipalities of Jesús Carranza, Hidalgotitlán, Minatitlán, and Las Choapas in Veracruz, as well as Santa María Chimalapa in Oaxaca. It has an area of 2,600 km². Its municipal seat is the town of La Chinantla (Poblado Diez), its largest community, with a 2005 census population of 2,579 inhabitants. Other significant communities in the municipality include the towns of Villa Juarez (poblado 1), Saturnino, Helio García Alfaro (Poblado Once), Río Uxpanapa (Poblado Catorce),La laguna, Agustin Melgar, La Horqueta (Poblado Doce), Hermanos Cedillo (Poblado Dos A), Plan de Arroyo (poblado 2 B), and Poblado Cinco. In the 2005 INEGI census the municipality recorded a population of 24,906 inhabitants. The municipality contains a northern extension of the ecologically sensitive Selva Zoque tropical rainforest. The municipality is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinantec
The Chinantec or Chinantecan languages constitute a branch of the Oto-Manguean family. Though traditionally considered a single language, ''Ethnologue'' lists 14 partially mutually unintelligible varieties of Chinantec.Palancar, Enrique L. (2014). Revisiting the Complexity of the Chinantecan Verb Conjugation Classes. In Jean-Léo Léonard & Alain Kihm (Eds.), ''Patterns in Mesoamerican Morphology'' (pp. 77–102). HAL 01100738 The languages are spoken by the indigenous Chinantec people who live in Oaxaca and Veracruz, Mexico, especially in the districts of Cuicatlán, Ixtlán de Juárez, Tuxtepec and Choapan, and in Staten Island, New York. Internal classification Egland and Bartholomew (1978) established fourteen Chinantec languages on the basis of 80% mutual intelligibility. ''Ethnologue'' found that one that had not been adequately compared (Tlaltepusco) was not distinct, but split another (Lalana from Tepinapa). At a looser criterion of 70% intelligibility, Lalana–Tepinapa, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valle Nacional River
The Valle Nacional River is a river of Oaxaca state in Mexico. The river originates in the Sierra Juárez. The ecology of the region, originally one of pine forests, is threatened by logging, agriculture and grazing. The Valle Nacional flows past San Juan Bautista Valle Nacional, and joins the Santo Domingo River to the southwest of San Juan Bautista Tuxtepec to form the Papaloapan River. See also *List of rivers of Mexico This is a list of rivers of Mexico, listed from north to south. There are 246 rivers on this list. Alternate names for rivers are given in parentheses. Rivers flowing into the Gulf of Mexico * Río Bravo, the name of the Rio Grande in Mexico ** S ... References Rivers of Oaxaca Sierra Madre de Oaxaca Papaloapan River {{Mexico-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oaxaca
Oaxaca ( , also , , from nci, Huāxyacac ), officially the Free and Sovereign State of Oaxaca ( es, Estado Libre y Soberano de Oaxaca), is one of the 32 states that compose the political divisions of Mexico, Federative Entities of Mexico. It is divided into municipalities of Oaxaca, 570 municipalities, of which 418 (almost three quarters) are governed by the system of (customs and traditions) with recognized local forms of self-governance. Its capital city is Oaxaca de Juárez. Oaxaca is in southwestern Mexico. It is bordered by the states of Guerrero to the west, Puebla to the northwest, Veracruz to the north, and Chiapas to the east. To the south, Oaxaca has a significant coastline on the Pacific Ocean. The state is best known for #Indigenous peoples, its indigenous peoples and cultures. The most numerous and best known are the Zapotec peoples, Zapotecs and the Mixtecs, but there are sixteen that are officially recognized. These cultures have survived better than most others ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veracruz
Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y Soberano de Veracruz de Ignacio de la Llave), is one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is located in eastern Mexico and is bordered by seven states, which are Tamaulipas, San Luis Potosí, Hidalgo, Puebla, Oaxaca, Chiapas, and Tabasco. Veracruz is divided into 212 municipalities, and its capital city is Xalapa-Enríquez. Veracruz has a significant share of the coastline of the Gulf of Mexico on the east of the state. The state is noted for its mixed ethnic and indigenous populations. Its cuisine reflects the many cultural influences that have come through the state because of the importance of the port of Veracruz. In addition to the capital city, the state's largest cities include Veracruz, Coatzacoalcos, Córdoba, Minatitlán, Poza Rica, Boca Del Río and Or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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