what are the various types of soil erosion?
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Rainfall, and the surface runoff which may result from rainfall, produces four main types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion.
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['Coastal erosion.', 'Groynes.', 'Sea walls.', 'Rock Armour.', 'Gabions.', 'Cliff stabilization.', 'Beach nourishment.', 'Reprofiling.']
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['Sandy soil. Sandy Soil is light, warm, dry and tend to be acidic and low in nutrients. ... ', 'Clay Soil. Clay Soil is a heavy soil type that benefits from high nutrients. ... ', 'Silt Soil. Silt Soil is a light and moisture retentive soil type with a high fertility rating. ... ', 'Peat Soil. ... ', 'Chalk Soil. ... ', 'Loam Soil.']
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Soil erosion occurs naturally by wind or harsh climatic conditions but human activities include overgrazing, overcropping and deforestation.
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There are three basic types of soil: sand, silt and clay.
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There are several different types of water erosion, but they can generally be grouped into four main types. These are inter-rill erosion, rill erosion, gully erosion, and streambank erosion. Inter-rill erosion, also known as raindrop erosion, is the movement of soil by rainfall and its resulting surface flow.
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['Sand.', 'Silt.', 'Clay.', 'Loam.', 'Topsoil.', 'Subsoil.', 'Soil crust.', 'Claypan.']
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The agents of erosion are ice, water, wind, waves and gravity. The degree to which erosion occurs depends on the slope of the land, amount of rain or snow, wind and looseness of the rock and soil.
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['1) Sheet erosion by water;', '2) Wind erosion;', '3) Rill erosion – happens with heavy rains and usually creates smalls rills over hillsides;', '4) Gully erosion – when water runoff removes soil along drainage lines.', '5) Ephemeral erosion that occurs in natural depressions.']
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['water erosion (includes sheet, rill and gully erosion)', 'wind erosion.', 'salinity (includes dryland, irrigation and urban salinity)', 'loss of organic matter.', 'fertility decline.', 'soil acidity or alkalinity.', 'structure decline (includes soil compaction and surface sealing)', 'mass movement.']
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In this study, Botero-Acosta says they found that soil type and land use were the two most important variables. “The most vulnerable areas for erosion were found to be located at the upper riparian zone of the Cobb and Lake sub-watersheds. The soil there is sand and silt, which is very prone to erosion,” she says.
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Soil erosion is not only an environmental issue; it also causes huge losses to the economy. One study estimated global economic losses from soil erosion to be around $8 billion, due to reduced soil fertility, decreased crop yields and increased water usage.
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The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. ... Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.
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['Sedimentation.', 'Runoff.', 'Erosion.', 'Dissolved oxygen.', 'pH.', 'Temperature.', 'Decayed organic materials.', 'Pesticides.']
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Sand, sandy loam and loam-textured soils tend to be less erodible than silt, very fine sand and certain clay-textured soils. Tillage and cropping practices that reduce soil organic matter levels, cause poor soil structure, or result in soil compaction, contribute to increases in soil erodibility.
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1 Answer. Erosion - The process by which water, ice, wind, or gravity moves fragments of rock and soil. Deposition - The process by which sediment settles out of the water or wind that is carrying it, and is deposited in a new location.
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['Abrasion: The erosion of the river bottom and the riverbank by material being carried by the river itself.', 'Attrition: The rocks and pebbles being carried by the river crash against each other, wearing them down to become smaller, rounded pebbles.', 'Corrasion: see Attrition.']