What causes desertification in South Africa?

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 …

Which is the main factor responsible for desertification?

Overgrazing: Overgrazing is one of the major factors of land degradation or desertification.

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.

Why is desertification a problem in Africa?

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.

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What is the impact of drought in South Africa?

Macroeconomic impacts

Primary impacts Secondary impacts
Reduced forest, crop, and range land productivity Reduced income and food shortages
Reduced water levels Lower accessibility to water
Reduced cloud cover Plant scorching
Increased daytime temperature Increased fire hazard

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.

How can desertification affect humans?

Land degradation and desertification can affect human health through complex pathways. As land is degraded and deserts expand in some places, food production is reduced, water sources dry up and populations are pressured to move to more hospitable areas. … the spread of infectious diseases as populations migrate.

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.

What is desertification short answer?

Desertification refers to the process of fertile land becoming unproductive. This means that the land struggles to grow any type of vegetation due to lack of minerals and nutrients in the soil.

What is the impact of desertification?

Desertification has caused major environmental and socioeconomic problems in many arid and semiarid areas of the world1. It causes soil degradation and severely reduces potential land productivity24, which causes degradation of the ecosystem and its associated ecosystem services.

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Which is not a cause of desertification?

Conserving Water is not a cause of desertification.