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Forest Islands
A forest island is an atypical isolated strand of tropical forest on the Amazonian savanna. Their origin is largely unknown. One hypothesis suggests anthropomorphic origins, those forest islands being earlier human farming of diverse useful, food-producing tropical plants and trees, collected and willfully inserted in suitable points of the grassland. Characteristics Forest islands are found in between the Andes and the Amazonia forest, in large, rather flat grassland areas with savannah vegetation as the dominant biological feature. These plains are irrigated by yearly Spring melting of Andes snow cover. Within this grassland landscape, thousands of tree-covered mounds are known, standing above the nearby grasslands. Forest islands are typically described as raised, wooded areas of about 70 meters in diameter. Origin These atypical mounts were first assumed to be the differential results of modern extensive animal farming on surrounding grasslands, loosening soil material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Forest
Tropical forests are forested ecoregions with tropical climates – that is, land areas approximately bounded by the Tropic of Cancer, tropics of Cancer and Tropic of Capricorn, Capricorn, but possibly affected by other factors such as prevailing winds. Some tropical forest types are difficult to categorize. While forests in temperate climate, temperate areas are readily categorized on the basis of tree canopy density, such schemes do not work well in tropical forests. There is no single scheme that defines what a forest is, in tropical regions or elsewhere.Anatoly Shvidenko, Charles Victor Barber, Reidar Persson et al. 2005 "Millennium Ecosystem Assessment." Ecosystems and human wellbeing: a framework for assessment Washington, DC: Island Press Because of these difficulties, information on the extent of tropical forests varies between sources. However, tropical forests are extensive, making up just under half the world's forests. The tropical domain has the largest proportion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon Rainforest
The Amazon rainforest, also called the Amazon jungle or Amazonia, is a Tropical and subtropical moist broadleaf forests, moist broadleaf tropical rainforest in the Amazon biome that covers most of the Amazon basin of South America. This basin encompasses , of which are covered by the rainforest. This region includes territory belonging to nine nations and 3,344 Indigenous territory (Brazil), indigenous territories. The majority of the forest, 60%, is in Amazônia Legal, Brazil, followed by Peruvian Amazonia, Peru with 13%, Amazon natural region, Colombia with 10%, and with minor amounts in Bolivia, Ecuador, French Guiana, Guyana, Suriname, and Venezuela. Four nations have "Amazonas (other), Amazonas" as the name of one of their first-level administrative regions, and France uses the name "Guiana Amazonian Park" for French Guiana's protected rainforest area. The Amazon represents over half of the total area of remaining rainforests on Earth, and comprises the largest a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Four savanna forms exist; ''savanna woodland'' where trees and shrubs form a light canopy, ''tree savanna'' with scattered trees and shrubs, ''shrub savanna'' with distributed shrubs, and ''grass savanna'' where trees and shrubs are mostly nonexistent.Smith, Jeremy M.B.. "savanna". Encyclopedia Britannica, 5 Sep. 2016, https://www.britannica.com/science/savanna/Environment. Accessed 17 September 2022. Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forests.Manoel Cláudio da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darrell A
Darrell is a given name derived from an English surname, which was derived from Norman-French , originally denoting one who came from Airelle in France. There are no longer any towns in France called Airelle, but is the French word for huckleberry. Darrell may refer to: Sports * Darrell Allums (born 1958), American basketball player * Darrell Armstrong (born 1968), NBA basketball player * Darrell Campbell (born 1981), American football defensive tackle on the practice squad of the Chicago Bears *Darrell Clarke (born 1977), manager of Bristol Rovers football club * Darrell Daniels (born 1994), American football player * Darrell Evans (born 1947), former third baseman and first baseman in Major League Baseball *Darrell Green (born 1960), cornerback for the Washington Redskins from 1983 to 2002 * Darrell Griffith (born 1958), former NBA basketball player who spent his entire career with the Utah Jazz * Darrell Jackson (born 1978), American football wide receiver currently playin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayapo
The Kayapo (Portuguese language, Portuguese: Caiapó ) people are an indigenous people in Brazil, living over a vast area across the states of Pará and Mato Grosso, south of the Amazon River and along the Xingu River and its tributaries. This location has given rise to the tribe's nickname of "the Xingu". They are one of the various subgroups of the great Mebêngôkre nation (meaning "people from the water's source"). The name ''Kayapo'' is used by neighboring groups rather than referring by the Kayapo to themselves; they refer to outsiders as ''Poanjos''. A type of sweet potato/tuber forms an important part of the Kayapó diet, and is sometimes named "caiapo", after the tribe. It is cultivated under that name in Japan, and has been found to decrease insulin resistance in type 2 diabetic patients. History In the 18th century, in the northeastern region of the present state of São Paulo (state), São Paulo, the Kayapó tribe first encountered Portuguese Brazilians, Portuguese- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defecation
Defecation (or defaecation) follows digestion and is the necessary biological process by which organisms eliminate a solid, semisolid, or liquid metabolic waste, waste material known as feces (or faeces) from the digestive tract via the anus or cloaca. The act has a variety of names, ranging from the technical (e.g. bowel movement), to the common (like pooping or crapping), to the obscene (''Shit, shitting''), to the euphemistic ("doing number two", "dropping a deuce" or "taking a dump"), to the juvenile ("going poo-poo" or "making doo-doo"). The topic, usually avoided in polite company, forms the basis of scatological humor. human feces, Humans expel feces with a frequency varying from a few times daily to a few times weekly. Waves of muscle, muscular contraction (known as ''peristalsis'') in the walls of the colon (anatomy), colon move fecal matter through the digestive tract towards the rectum. Flatus may also be expulsed. Undigested food may also be expelled within the fec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanos De Moxos
The Llanos de Moxos, also known as the Beni savanna or Moxos plains, is a tropical savanna ecoregion of the Beni Department of northern Bolivia. Setting The Llanos de Moxos covers an area of in the lowlands of northern Bolivia, with small portions in neighboring Brazil and Peru. Most of the Llanos de Moxos lies within the departments of El Beni, Cochabamba, La Paz, Pando, and Santa Cruz. The Llanos de Moxos occupies the southwestern corner of the Amazon basin, and the region is crossed by numerous rivers that drain the eastern slope of the Andes Mountains. The low relief of the savannas, coupled with wet season rains and snowmelt from the Andes, cause up to half the land to flood seasonally. The Llanos de Moxos is surrounded by tropical moist forests; the Southwestern Amazonian moist forests to the north, west, and south, and the Madeira-Tapajós moist forests to the east. Climate The climate of the Llanos de Moxos is tropical, with pronounced wet and dry seasons. The we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiocarbon Dating
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for Chronological dating, determining the age of an object containing organic material by using the properties of carbon-14, radiocarbon, a radioactive Isotopes of carbon, isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby. It is based on the fact that radiocarbon () is constantly being created in the Atmosphere of Earth, Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of it contains begins to decrease as the undergoes radioactive decay. Measuring the amount of in a sample from a dead plant or animal, such as a piece of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbita
is a genus of herbaceous fruits in the gourd family, Cucurbitaceae (also known as ''cucurbits'' or ''cucurbi''), native to the Andes and Mesoamerica. Five edible species are grown and consumed for their flesh and seeds. They are variously known as squash, pumpkin, or gourd, depending on species, variety, and local parlance. Other kinds of gourd, also called bottle-gourds, are native to Africa and belong to the genus ''Lagenaria'', which is in the same family and subfamily as ''Cucurbita'', but in a different tribe; their young fruits are eaten much like those of the ''Cucurbita'' species. Most ''Cucurbita'' species are herbaceous vines that grow several meters in length and have tendrils, but non-vining "bush" cultivars of ''C. pepo'' and ''C. maxima'' have also been developed. The yellow or orange flowers on a ''Cucurbita'' plant are of two types: female and male. The female flowers produce the fruit and the male flowers produce pollen. Many North and Central Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native Americans planted it alongside beans and squashes in the Three Sisters polyculture. The leafy stalk of the plant gives rise to male inflorescences or tassels which produce pollen, and female inflorescences called ears. The ears yield grain, known as kernels or seeds. In modern commercial varieties, these are usually yellow or white; other varieties can be of many colors. Maize relies on humans for its propagation. Since the Columbian exchange, it has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat and rice. Much maize is used for animal feed, whether as grain or as the whole plant, which can either be baled or made into the more palatable silage. Sugar-rich varieties called sw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Gardening
Agroforestry (also known as agro-sylviculture or forest farming) is a land use management system that integrates trees with crops or pasture. It combines agricultural and forestry technologies. As a polyculture system, an agroforestry system can produce timber and wood products, fruits, nuts, other edible plant products, edible mushrooms, medicinal plants, ornamental plants, animals and animal products, and other products from both domesticated and wild species. Agroforestry can be practiced for economic, environmental, and social benefits, and can be part of sustainable agriculture. Apart from production, benefits from agroforestry include improved farm productivity, healthier environments, reduction of risk for farmers, beauty and aesthetics, increased farm profits, reduced soil erosion, creating wildlife habitat, less pollution, managing animal waste, increased biodiversity, improved soil structure, and carbon sequestration. Agroforestry practices are especially pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Farming
Agroforestry (also known as agro-sylviculture or forest farming) is a land use management system that integrates trees with crops or pasture. It combines agricultural and forestry technologies. As a polyculture system, an agroforestry system can produce timber and wood products, fruits, Nut (fruit), nuts, other edible plant products, edible mushrooms, medicinal plants, ornamental plants, animals and animal products, and other products from both domesticated and wild species. Agroforestry can be practiced for economic, environmental, and social benefits, and can be part of Sustainability, sustainable agriculture. Apart from production, benefits from agroforestry include improved farm productivity, healthier environments, reduction of risk for farmers, beauty and aesthetics, increased farm profits, reduced soil erosion, creating wildlife habitat, less pollution, managing animal waste, increased biodiversity, improved soil structure, and carbon sequestration. Agroforestry practices ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
