Why are areas in Africa at risk of drought and desertification?

Whereas over cultivation, inappropriate agricultural practices, overgrazing and deforestation have been previously identified as the major causes of land degradation and desertification, it is in fact a result of much deeper underlying forces of socio-economic nature, such as poverty and total dependency on natural …

Where are the risk of droughts and desertification in Africa?

While recurrent droughts are a common feature throughout most of the drylands in Africa, three distinct areas have been identified as most at risk: Mediterranean Africa, the Sudano-Sahelian region and the Kalahari-Namib region in southern Africa.

Why areas are at risk of drought and desertification?

2.1 Causes of drought and desertification

The resultant effects of drought are exacerbated by human activities such as deforestation, overgrazing and poor cropping methods, which reduce water retention of the soil, and improper soil conservation techniques, which lead to soil degradation.

Why is Africa at risk of drought?

Niger and Chad indicate the highest drought risk ratios among other African countries, which is attributed to substantial population growth as well as increasing drought hazard due to climate change.

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Why is Africa so susceptible to desertification?

It has been estimated that 319 million hectares of Africa are vulnerable to desertification hazards due to sand movement. … Deforestation exposes the soil to high temperatures which break down the organic matter, increase evaporation and make the soils vulnerable to erosion.

What is Africa doing about desertification?

The Great Green Wall. One ambitious initiative created to reduce desertification in Africa is the Great Green Wall. … The Great Green Wall’s goals for 2030 include restoring 247 million acres of destroyed land and creating 10 million jobs in rural areas.

What are 3 causes of desertification?

Overgrazing is the major cause of desertification worldwide. Other factors that cause desertification include urbanization, climate change, overuse of groundwater, deforestation, natural disasters, and tillage practices in agriculture that make soils more vulnerable to wind.

What is the relationship between desertification and drought?

While drought is a natural phenomenon, whose impacts can be exacerbated by human activities that are not adapted to the local climate, land degradation is the process of turning fertile land into less or non-productive land. In extreme cases in drylands this is called desertification.

Does desertification cause drought?

These unsustainable land uses place enormous pressure on the land by altering its soil chemistry and hydrology. … Droughts can persist for months or years, but eventually subside; lands undergoing desertification never recover past productivity.

Where are the risks of drought in Africa?

Based on exposure measured as a function of the density of agricultural production per square kilometer, the risks associated with drought are greatest in southwestern Ethiopia and western Kenya.

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Which places are at risk of drought in Africa?

Affected Countries

  • Angola.
  • Botswana.
  • Democratic Republic of the Congo.
  • Eswatini.
  • Lesotho.
  • Malawi.
  • Mozambique.
  • Namibia.

What are 5 causes of drought?

Here are the 5 natural and human causes of drought:

  • 1) Land and water temperatures cause drought. …
  • 2) Air circulation and weather patterns also cause drought. …
  • 3) Soil moisture levels also contribute to drought. …
  • 4) Drought can also be a supply and demand of water issue.
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