Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. It is caused by a variety of factors, such as climate change and human activities. Desertification is a significant global ecological and environmental problem. ==De...
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the degradation of land in arid, semi arid and dry sub-humid areas resulting from various climatic variations, but primarily from human activities.
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spread or encroachment of a desert environment into arid or semiarid regions, caused by climatic changes, human influence, or both. Climatic factors ... [5 related articles]
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Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities. Further, the United Nations Convention to Combat Desertification (UNCCD) defines land degradation as a reduction or loss in arid, semi-arid and dry sub-humi...
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Instances of intense land degradation resulting in desert-like conditions over large areas.
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The transformation of arid and semi-arid land into desert, generally due to overgrazing,
deforestation, poor irrigation and tilling practices,
climate change, or a co...
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Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities.
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The process through which a desert takes over a formerly non-desert area. When a region begins to undergo desertification, the new conditions typically include a significantly lowered water table, a reduced supply of surface water, increased salinity in natural waters and soils, progressive destruction of native vegetation, and an accelerated rate...
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Desertification means the degradation of land in dry areas of the world. It is not the spread of existing deserts, but rather the loss and destruction of healthy fertile soils. Loss of topsoil and soil fertility results in declining production of crops and livestock. Overall the problem is caused by people putting too much pressure on delicate soils and ecosytems....
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The progressive destruction or degradation of existing vegetative cover to form desert. This can occur due to overgrazing, deforestation, drought, and the burning of extensive areas. Once formed, deserts can only support a sparse range of vegetation. Climatic effects associated with this phenomenon include increased albedo, redu...
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A process by which land becomes increasingly unproductive and barren.
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is the ultimate stage in the process of unnatural land degradation, when the fertility of the its soil has been completely and irreversibly destroyed
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Conversion of marginal rangeland or cropland to a more desert like land type. Desertification can be caused by overgrazing, soil erosion, prolonged drought, or climate change.
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United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa
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the degradation of land in arid and dry sub-humid areas, resulting primarily from natural activities and influenced by climatic variations
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the degradation of land in arid, semi arid and dry sub-humid areas resulting from various climatic variations, but primarily from human activities.
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It is the natural or man made conversation of arable or forest land into barren deserts.
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The progressive destruction or degradation of vegetative cover especially in arid or semiarid regions bordering existing deserts. Overgrazing of rangelands, large-scale cutting of forests and woodlands, drought, and burning of extensive areas all serve to destroy or degrade the land cover. The climatic impacts of this destruction include increased ...
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noun the gradual transformation of habitable land into desert; is usually caused by climate change or by destructive use of the land; `the dust storms in Korea are the result of rapid desertification in China`
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Spread of deserts by changes in climate, or by human-aided processes. Desertification can sometimes be reversed by special planting (marram grass, trees) and by the use of water-absorbent plastic grains, which, added to the soil, enable crops to be grown. About 30% of land worldwide is affected by desertification (1998), including 1 mil...
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A process of land degradation initiated by human activity, particularly in the zones along the margins of deserts.
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the processes by which an area becomes a desert. · the rapid depletion of plant life and the loss of topsoil at desert boundaries and in semiarid regions, usually caused by a combination of drought and the overexploitation of grasses and other vegetation by people.
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a gradual transformation into arid, uninhabitable land
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