Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. https://www.slideshare.net/IlenyaDimech/desertification-58141961 The Sahel is becoming more like desert with thin, dry, sandy soils ; Soil erosion has created bare rock ; Vegetation is sparse; 3 The UN environment programme took up combating desertification as a major part of its work. The desert areas may be arid, semi-arid and dry sub-humid featuring well stored sands. The adverse impacts of desertification on dryland ecosystem services and limited success in rehabilitation demonstrate that it is more cost-effective to prevent desertification (C22.3.2, C22.6, R17). Desertification has occurred because desert ecosystems, which cover over one third of the world's land area, are extremely vulnerable to overexploitation and inappropriate land use, compounded by poverty, political instability, deforestation, overgrazing, and wasteful irrigation practices. Now customize the name of a clipboard to store your clips. We live in a world where climate change is often a hot topic of discussion. The International Film Festival entitled ‘Desert Nights - Tales from the Desert’ in Rome in December 2006 is an example of one such awareness–raising initiative. Desertification PRESENTED BY HALIMA ZEB ABBASI 1 2. Presentation Summary : Desertification The process which turns productive desert land into non-productive. The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. Precipitation levels are in the Thar Desert are very low, between 120-240mm, and evaporation rates are high. If you continue browsing the site, you agree to the use of cookies on this website. Now customize the name of a clipboard to store your clips. Desertification is the degradation of grasslands, savannas , and woodlands to a more desert-like condition, with resulting decrease in plant production and the land's ability to support livestock grazing or other human uses.Vegetation becomes sparse; exposed soil becomes more vulnerable to erosion; and yields from cropland or grazing are reduced. Desertification has occurred because desert ecosystems, which cover over one third of the world's land area, are extremely vulnerable to overexploitation and inappropriate land use, compounded by poverty, political instability, deforestation, overgrazing, and wasteful irrigation practices. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Addressing desertification is critical and essential to meeting the Millennium Development Goals. Desertification can exist at high altitudes too, however – and when this happens, the desert will be cold. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime. Sometimes this is caused by climate changes, but more often than not it is a The different scenarios are based on either increased globalization or increased regionalization, each combined with either a reactive or proactive way of addressing environmental issues. Clipping is a handy way to collect important slides you want to go back to later. • It is a process by which fertile land is transformed into desert. Desertification is a result of a long-term failure to balance demand for and supply of ecosystem services in drylands. Desertification, to put it plainly, is when land that was initially of another kind of biome transforms into a desert biome on account of changes of various types. Ice deserts. Home to a third of the human population in 2000, drylands occupy nearly half of Earths land area. Clipping is a handy way to collect important slides you want to go back to later. Raising awareness of the problem 16. Desertification was singled out as a key instrument for poverty eradication in dryland rural areas. But deserts are far more than this and there are multiple types. The Desert, Deserts of the World See Also: Desert Survival Tips , Overviews , Geography Index For MORE links, lessons and loads of other goodies for teachers and kids, continue on to see what Mr. Donn has for Landforms : including Mountains , Oceans , Rivers , Lakes , Islands , Plains , Coasts , … APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Satellite data spanning more than twenty years now shows that the Sahel is holding its own against the Sahara and may be recovering with the return of near-normal rainfall. Desertification refers to the persistent degradation of dryland ecosystems by climatic variations and human activities. Although the end-product is similar, Desertification is nothing like the preexisting deserts of our planet which consist of diverse dryland ecosystems and countless species. A cold desert may be sandy or rocky, but it will be a harsh environment where organisms have adapted in weird and wonderful ways so that they can survive. If you continue browsing the site, you agree to the use of cookies on this website. A good example is the deserted rocky peaks of a mountain. This is a destructive process where a fertile land filled with greenery and its own specific diverse wildlife converts into a barren land, which is similar to a desert. Causes of desertification desert and desertification slideshare how to control desertification in population between 1860 and 1920 what desertification! 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