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Desertification is a gradual process of increased soil aridity.Desertification has been defined in the text of the United Nations Convention to Combat Desertification (UNCCD) as "land degradation in arid, semi-arid and dry sub-humid regions resulting from various factors, including climatic variations and human activities."
The cultivation of semi-arid regions encourages erosion of soil and is one of the causes of increased desertification. Desert farming is possible with the aid of irrigation , and the Imperial Valley in California provides an example of how previously barren land can be made productive by the import of water from an outside source.
A satellite image of the Sahara, the world's largest hot desert and third largest desert after Antarctica and the Arctic. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life.
Desertification. Desertification, an environmental process of ecosystem degradation in arid and semi-arid regions, is often caused by badly adapted human activities such as overgrazing or excess harvesting of firewood. It is a common misconception that drought causes desertification. [230] Droughts are common in arid and semiarid lands.
When speaking with him, it’s clear that he’s prepared with ample information to convince skeptics that the carnivore diet is helpful, not harmful — he cites both personal stories of ...
Joel Embiid popped up from a pregame fall and scored 27 points with nine rebounds, making 4 of 5 from 3-point range and sinking a pair of free throws with 3 seconds left to turn back Boston’s ...
Southerners have a lot of rules when it comes to cooking—and some of them are subjective. For example, some folks simply abhor putting sugar in cornbread, washing their cast-iron skillet with ...
Desertification in Africa is a form of land degradation that involves the conversion of productive land into desert or arid areas. This issue is a pressing environmental concern that poses a significant threat to the livelihoods of millions of people in Africa who depend on the land for subsistence .