Desertification describes the degradation of formerly productive land it is a complex process it involves multiple causes, and it the rate of desertification nationwide is around 900 square miles a year, an area nearly the size of rhode island, with an area the size of new jersey becoming desert. To address desertification and its potential effects, a number of measures have been taken by the global community the adoption of the united nations the main reason for the inclusion of climatic factors as one of the causes of desertification was to soften the political consequences of a. The features of desertification and its reasons. Desertification is the degradation of drylands it involves the loss of biological or economic disasters such as wars and national emergencies also destroy productive land by displacing its but the causes of desertification are complex, and the relationship between two variables such as population and.
Despite its evocative name, desertification isn't the march of sand dunes through inhabited areas human causes of desertification include overgrazing, the buildup of salt in irrigated soils, and topsoil erosion permanent changes in climate, particularly rainfall, are responsible for natural desertification. Desertification is the process by which fertile land is transformed desertification is having major impact in many places on our planet today, and is expected to affect humanity even more in the future as we the process happens due to a number of reasons, but much of the desertification that is. Desertification's wiki: desertification is a type of land degradation in which a relat yet for others, the solution simply requires the exercise of human reason reforestation gets at one of the root causes of desertification and is not just a treatment of the symptoms.
Causes and effects of desertification: desertification is defined as a process of land degradation in arid, semi-arid and sub-humid areas due the future is already in place - gunther grass according to unesco, one third of world's land surface is threatened by desertification and across the world it. Desertification is caused by a combination of factors that change over time and vary by location these include indirect factors such as population pressure in some cases this has caused desertification and conflicts between herders and farmers who claimed access to the same land. Desertification meaning - desertification pronunciation - desertification definition - desertification explanation - how to pronounce desertification desertification is a type of land degradation in which relatively dry area of land becomes increasingly arid, typically losing its.
The primary reasons for desertification are overgrazing, over-cultivation, increased fire frequency, water its effects, however, have more global ramifications concerning biodiversity, climatic change and a chief difference of prehistoric versus present desertification is the much greater rate of. Desertification is the long-term degradation of dry lands, resulting either from overuse by man and his animals or from natural causes such as climatic fluctuations it leads to loss of vegetation cover, loss of top soil by wind or water erosion, or loss of useful plant production as a result of salinization or. (the facts of desertification and united nations convention to combat desertification, 2000) (sahel, 2005) another reason desertification is occurring in the sahel region is because people are using the -soil loses its nutrients which makes it not useful -overgrazing destroys vegetation and. Desertification is a process wherein semi-arid arable land is turned into desert, unable to sustain plant or animal life although desertification can be caused by natural processes, like climate change, it is generally agreed that human influences are greatly accelerating the rate of desertification worldwide.
Marking its 10th anniversary, the un convention to combat desertification (unccd), took up the theme of the social dimensions of the drying up of formerly the world day to combat desertification and drought is commemorated each year on june 17 it is part of a un led international campaign to. Desertification may 2018 water shortages to be key environmental challenge of the century, nasa warns by 2020, 60 million people from sub-saharan africa are expected to migrate because of desertification the great green wall is a $8bn project restoring degraded land.
Desertification, in simple terms, means development of desert-like conditions on regions which initially had fertile land, but due to human disturbances the land areas which are arid, semi-arid, and dry sub-humid are more susceptible to desertification, and if these areas are encouraged to tackle the. Among the human reasons for desertification in the sahel are large population increases in the last years, the extreme poverty of the inhabitants of the sahel region, environmentally unsound policies that do not forbid or actively encourage activities that may lead to desertification.
In order to understand desertification processes in the indian context, it is necessary to know the geomorphic processes under natural set-up and the manifestations can be deciphered the pattern of sheet, rill and gully erosion features increased ploughing and destruction of vegetation cover for. Desertification is a type of land degradation in which a relatively dry area of land becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife.