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2 de may. de 2024 · Desertification, the process by which natural or human causes reduce the biological productivity of drylands. Such declines may be the result of climate change, deforestation, overgrazing, poverty, political instability, unsustainable irrigation practices, or combinations of these factors.
- Sedimentation
sedimentation, in the geological sciences, process of...
- Rain-fed Croplands
Desertification - Rainfed Crops, Soil Loss, Climate Change:...
- Desertification
Desertification drains an arid or semiarid land of its...
- Rangeland
Rangeland, any extensive area of land that is occupied by...
- Climate Change
Climate change, the periodic modification of Earth’s climate...
- Runoff
runoff, in hydrology, quantity of water discharged in...
- Sedimentation
Hace 2 días · Conversion to dry land. To increase economic productivity, wetlands are often converted into dry land with dykes and drains and used for agricultural purposes. The construction of dykes, and dams, has negative consequences for individual wetlands and entire watersheds.
23 de abr. de 2024 · Desertification is a type of land degradation in which an already relatively dry land area becomes increasingly arid, degrading productive soil and losing its bodies of water, biodiversity and vegetation cover. It is driven by a combination of factors, including climate change, deforestation, overgrazing and unsustainable agricultural practices.
19 de abr. de 2024 · desert, any large, extremely dry area of land with sparse vegetation. It is one of Earth’s major types of ecosystems, supporting a community of distinctive plants and animals specially adapted to the harsh environment. For a list of selected deserts of the world, see below.
25 de abr. de 2024 · Many of these wetlands are seasonal (they are dry one or more seasons every year), and, particularly in the arid and semiarid West, may be wet only periodically. The quantity of water present and the timing of its presence in part determine the functions of a wetland and its role in the environment.
6 de may. de 2024 · A desert is a region of land that is very dry because it receives low amounts of precipitation (usually in the form of rain, but it may be snow, mist or fog), often has little coverage by plants, and in which streams dry up unless they are supplied by water from outside the area.
Hace 1 día · flood, high-water stage in which water overflows its natural or artificial banks onto normally dry land, such as a river inundating its floodplain. The effects of floods on human well-being range from unqualified blessings to catastrophes.
