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74 relations: Acid, Africa, Alfisol, Aluminium, Ames, Iowa, Atmosphere of Earth, Australia, Bauxite, Bioturbation, Brazil, Brown earth, Cation-exchange capacity, Cimmeria (continent), Clay minerals, Climate, Cocoa bean, Craton, Equator, Europe, FAO soil classification, Fertilizer, Fossil, Geography of Thailand, Gravel, Humus, Hydroxide, Inner sphere complex, Ion exchange, Iowa State University, Iron, Ironstone, Kaolinite, Khorat Plateau, Laterite, Leaching (chemistry), Leaching (pedology), Lime (material), Mesozoic, Mineral, Nakhon Ratchasima Province, Natural rubber, North America, Organic matter, Orthent, Oxide, Oxygen, Paleocene, Paleosol, Pedogenesis, Pedology, ..., Perturbation (geology), Phosphorus, Quartz, Rainforest, Relict (geology), Rice, Sand, Shan–Thai Terrane, Soil classification, Soil horizon, South America, Southern Africa, Soybean, Termite, Terra preta, Tertiary, Tropical climate, Tropics, Ubon Ratchathani Province, Ultisol, USDA soil taxonomy, Weathering, World Reference Base for Soil Resources, Yasothon Province. Expand index (24 more) »
Acid
An acid is a molecule or ion capable of donating a hydron (proton or hydrogen ion H+), or, alternatively, capable of forming a covalent bond with an electron pair (a Lewis acid).
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Africa
Africa is the world's second largest and second most-populous continent (behind Asia in both categories).
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Alfisol
Alfisols are a soil order in USDA soil taxonomy.
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Aluminium
Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.
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Ames, Iowa
Ames is a city located in the central part of Story County, Iowa, United States.
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Atmosphere of Earth
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
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Australia
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands.
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Bauxite
Bauxite is a sedimentary rock with a relatively high aluminium content.
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Bioturbation
Bioturbation is defined as the reworking of soils and sediments by animals or plants.
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Brazil
Brazil (Brasil), officially the Federative Republic of Brazil (República Federativa do Brasil), is the largest country in both South America and Latin America.
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Brown earth
Brown earth is a type of soil.
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Cation-exchange capacity
Cation-exchange capacity (CEC) is a measure of how many cations can be retained on soil particle surfaces.
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Cimmeria (continent)
Cimmeria was an ancient continent, or, rather, a string of microcontinents or terranes, that rifted from Gondwana in the Southern Hemisphere and was accreted to Eurasia in the Northern Hemisphere.
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Clay minerals
Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces.
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Climate
Climate is the statistics of weather over long periods of time.
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Cocoa bean
The cocoa bean, also called cacao bean, cocoa, and cacao, is the dried and fully fermented seed of Theobroma cacao, from which cocoa solids and, because of the seed's fat, cocoa butter can be extracted.
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Craton
A craton (or; from κράτος kratos "strength") is an old and stable part of the continental lithosphere, where the lithosphere consists of the Earth's two topmost layers, the crust and the uppermost mantle.
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Equator
An equator of a rotating spheroid (such as a planet) is its zeroth circle of latitude (parallel).
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Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.
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FAO soil classification
The Food and Agriculture Organization of the United Nations (FAO) developed a supra-national classification, also called World Soil Classification, which offers useful generalizations about soils pedogenesis in relation to the interactions with the main soil-forming factors.
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Fertilizer
A fertilizer (American English) or fertiliser (British English; see spelling differences) is any material of natural or synthetic origin (other than liming materials) that is applied to soils or to plant tissues to supply one or more plant nutrients essential to the growth of plants.
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Fossil
A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.
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Geography of Thailand
Thailand's 514,000 square kilometers lie in the middle of mainland Southeast Asia.
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Gravel
Gravel is a loose aggregation of rock fragments.
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Humus
In soil science, humus (derived in 1790–1800 from the Latin humus for earth, ground) denominates the fraction of soil organic matter that is amorphous and without the "cellular cake structure characteristic of plants, micro-organisms or animals." Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients.
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Hydroxide
Hydroxide is a diatomic anion with chemical formula OH−.
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Inner sphere complex
Inner sphere complex is a type of surface complex.
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Ion exchange
Ion exchange is an exchange of ions between two electrolytes or between an electrolyte solution and a complex.
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Iowa State University
Iowa State University of Science and Technology, generally referred to as Iowa State, is a public flagship land-grant and space-grant research university located in Ames, Iowa, United States.
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Iron
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
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Ironstone
Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron compound from which iron either can be or once was smelted commercially.
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Kaolinite
Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4.
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Khorat Plateau
The Khorat Plateau (ที่ราบสูงโคราช) is a plateau in the northeastern Isan region of Thailand.
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Laterite
Laterite is a soil and rock type rich in iron and aluminium, and is commonly considered to have formed in hot and wet tropical areas.
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Leaching (chemistry)
Leaching is the process of extracting substances from a solid by dissolving them in a liquid, either naturally or through an industrial process.
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Leaching (pedology)
In pedology, leaching is the loss of mineral and organic solutes due to very heavy rainfall, high temperature and percolation.
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Lime (material)
Lime is a calcium-containing inorganic mineral in which oxides, and hydroxides predominate.
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Mesozoic
The Mesozoic Era is an interval of geological time from about.
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Mineral
A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.
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Nakhon Ratchasima Province
Nakhon Ratchasima (นครราชสีมา), often called Khorat (โคราช)) is one of the Isan provinces (changwat) of Thailand's northeast corner. It is the country's largest province by area, with a population of about 2.7 million who produce about 250 billion baht in GDP, the highest in Isan. Neighbouring provinces are (clockwise, from north) Chaiyaphum, Khon Kaen, Buriram, Sa Kaeo, Prachinburi, Nakhon Nayok, Saraburi, and Lopburi. The capital of the province is the city of Nakhon Ratchasima in Mueang Nakhon Ratchasima District, also called Khorat.
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Natural rubber
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.
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North America
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.
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Organic matter
Organic matter, organic material, or natural organic matter (NOM) refers to the large pool of carbon-based compounds found within natural and engineered, terrestrial and aquatic environments.
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Orthent
In USDA soil taxonomy, orthents are defined as entisols that lack horizon development due to either steep slopes or parent materials that contain no permanent weatherable minerals (such as ironstone).
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Oxide
An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Paleocene
The Paleocene or Palaeocene, the "old recent", is a geological epoch that lasted from about.
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Paleosol
In the geosciences, paleosol (palaeosol in Great Britain and Australia) can have two meanings.
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Pedogenesis
Pedogenesis (from the Greek pedo-, or pedon, meaning 'soil, earth,' and genesis, meaning 'origin, birth') (also termed soil development, soil evolution, soil formation, and soil genesis) is the process of soil formation as regulated by the effects of place, environment, and history.
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Pedology
Pedology (from Greek: πέδον, pedon, "soil"; and λόγος, logos, "study") is the study of soils in their natural environment.
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Perturbation (geology)
Perturbation (from Latin: perturbare "to confuse, disorder, disturb", from per- "through" + turbare "disturb, confuse," from turba "turmoil, crowd") is a set of pedology (soil study) and sedimentary geology processes relating to changes in the nature of water-borne alluvial sediments and in situ soil deposits over time.
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Phosphorus
Phosphorus is a chemical element with symbol P and atomic number 15.
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Quartz
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
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Rainforest
Rainforests are forests characterized by high rainfall, with annual rainfall in the case of tropical rainforests between, and definitions varying by region for temperate rainforests.
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Relict (geology)
In geology, the term relict refers to structures or minerals from a parent rock that did not undergo metamorphic change when the surrounding rock did, or to rock that survived a destructive geologic process.
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Rice
Rice is the seed of the grass species Oryza sativa (Asian rice) or Oryza glaberrima (African rice).
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Sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.
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Shan–Thai Terrane
The Shan–Thai or Sibumasu Terrane is a mass of continental crust extending from Tibet into Southeast Asia sharing a similar geological history.
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Soil classification
Soil classification deals with the systematic categorization of soils based on distinguishing characteristics as well as criteria that dictate choices in use.
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Soil horizon
A soil horizon is a layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath.
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South America
South America is a continent in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere.
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Southern Africa
Southern Africa is the southernmost region of the African continent, variably defined by geography or geopolitics, and including several countries.
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Soybean
The soybean (Glycine max), or soya bean, is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses.
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Termite
Termites are eusocial insects that are classified at the taxonomic rank of infraorder Isoptera, or as epifamily Termitoidae within the cockroach order Blattodea.
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Terra preta
Terra preta (locally, literally "black soil" in Portuguese) is a type of very dark, fertile artificial (anthropogenic) soil found in the Amazon Basin.
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Tertiary
Tertiary is the former term for the geologic period from 65 million to 2.58 million years ago, a timespan that occurs between the superseded Secondary period and the Quaternary.
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Tropical climate
A tropical climate in the Köppen climate classification is a non-arid climate in which all twelve months have mean temperatures of at least.
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Tropics
The tropics are a region of the Earth surrounding the Equator.
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Ubon Ratchathani Province
Ubon Ratchathani (อุบลราชธานี), often shortened to Ubon (อุบลฯ), is one of the northeastern provinces (changwat) of Thailand, and the country's easternmost.
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Ultisol
Ultisols, commonly known as red clay soils, are one of twelve soil orders in the United States Department of Agriculture soil taxonomy.
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USDA soil taxonomy
USDA soil taxonomy (ST) developed by United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate classification of soil types according to several parameters (most commonly their properties) and in several levels: Order, Suborder, Great Group, Subgroup, Family, and Series.
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Weathering
Weathering is the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.
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World Reference Base for Soil Resources
The World Reference Base for Soil Resources (WRB) is the international standard taxonomic soil classification system endorsed by the International Union of Soil Sciences (IUSS).
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Yasothon Province
Yasothon (ยโสธร) is a province (changwat) of Thailand, in the northeast on the Chi River.
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Redirects here:
Ferralsol, Ferralsols, Oxisols.
References
[1] https://en.wikipedia.org/wiki/Oxisol
