What causes drought and desertification in South Africa?

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 …

What are causes of drought and desertification?

Drought and desertification are closely related phenomena. … Inappropriate land use, such as monocultures, and unsustainable land management practices, such as deforestation, unsuitable agricultural practices and overexploitation of water resources), can cause land degradation that can be further aggravated by drought.

What are the main causes of drought in South Africa?

One of the main causes of drought in South Africa is the variability in rainfall (Mason and Tyson, 2000; Tyson and Preston-Whyte, 2000 and Vogel et al., 2000). The El Niño phenomenon accounts for approximately thirty percent of rainfall variability (Tyson and Preston-Whyte, 2000).

What causes desertification in South Africa?

‘Climatic variations’ and ‘Human activities’ can be regarded as the two main causes of desertification. removal of the natural vegetation cover(by taking too much fuel wood), agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.

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What causes drought and desertification in Africa?

Climate variability and changes also have a profound effect on accelerating erosion and land degradation. Extreme rainfall aggravates the condition of already degraded land through increased runoff and flooding. Lack of rainfall and resultant drought exacerbate desertification processes.

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 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.

How can we prevent drought in South Africa?

Protection and use of springs; Cloud seeding; Evaporation suppression; Desalination of brackish groundwater or sea water; and Effluent treatment and re-use. Developing and integrating other sources like groundwater, desalination and re-use, etc., with surface systems also to enhance water security.

What is the main cause of drought?

The Short Answer:

A drought is caused by drier than normal conditions that can eventually lead to water supply problems. Really hot temperatures can make a drought worse by evaporating moisture from the soil. … A drought is a prolonged period with less-than-average amounts of rain or snow in a particular region.

How bad is the drought in South Africa?

Much of the Eastern Cape province in South Africa has been experiencing a severe drought since 2015. This drought has had major socio-economic effects particularly on the large impoverished rural population as well as on some urban areas where supplied water services have broken down in several cases.

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What are the signs of desertification?

The signs, magnitude and severity of desertification can be established through such hydrological indicators as reduced area of water bodies, increased runoff and consequently decreased rainwater infiltration, accelerated soil erosion and sedimentation, and deteriorated ground-water resources.

How can desertification be prevented?

Strategies to reduce desertification

  1. Planting more trees – the roots of trees hold the soil together and help to reduce soil erosion from wind and rain.
  2. Improving the quality of the soil – this can be managed by encouraging people to reduce the number of grazing animals they have and grow crops instead.

What are the impacts of desertification?

“In many countries, desertification means a decline in soil fertility, a reduction in vegetation cover – especially grass cover – and more invasive shrub species. Practically speaking, the consequences of this are less available land for grazing, and less productive soils.

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