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 Discuss the causes and effects of desertification in the sahel (Africa)

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Introduction

* Discuss the causes and effects of desertification in the sahel (Africa) * What are the possible solutions to desertification and in your opinion which solutions would be most effective and why Desertification is the spreads of desert conditions into areas were not previously deserted. This process most commonly occurs in arid and semi-arid environments, the Sahel region in Africa is one of the worst affected. Estimates suggest that 35% of the earth's land surface is at risk, and the livelihoods of 850 million people are directly affected. 75% of the world's drier lands - 45,000,000 square kilometers are affected by desertification, and every year 6,000,000 hectares of agricultural land are lost and become desert. The Sahara is thought to be advancing southwards by about 5-10 kilometers per year, which is a very considerable amount, when you remember that the Sahara is 5,150 kilometers across at its widest point http://www.yptenc.org.uk/docs/factsheets/env_facts/desertification.html The regions it affects are Africa, the Middle East, India and Pakistan, China, Australia, the USA, Brazil, Peru and Chile in Latin America, and in European countries such as Greece, Spain and Portugal. ...read more.

Middle

When the plant dose not gets water it dies off and when the soil does not gets water it dry out which makes the land turn dust. Deforestation is when the farmer in the Sahel cut down trees and plant to build houses, making fires and food. When the trees and plants have been cut down it then makes the soil open to the sun which will make the soil turn into dusts. When the rain falls there wouldn't be trees to protect the soil from being washed away. Climate change is making the world hotter and causing less rain to fall. Climate change is mostly caused by power station cars and industry. They release carbon emissions that trap the heat that makes the earth hotter. So place like Sahel are becoming hotter than before and because the climate in Sahel is becoming hotter this cause it to rain less and longer droughts. Overgrazing is when the animals in the Sahel feed on a particular place for a long time eating every thing, even the roots and because the land is unperfected from the sun, it then turn the land into drought. ...read more.

Conclusion

The disadvantage is that it expensive. Afforestation, planting of more trees, no more cutting down of any more trees, the advantages of using this method is that plant transpiration rainfall, it good for the soil and dose not turn the soil to desert. The disadvantages are that it takes long time for trees to grow and they might die off due to the little rainfall. Long term aid this, this types of aid allows people to develop their live hood so they can survive without aid in future. The advantage of using this method is that it teaches them how to look after their lands and make it more productive for the future. My opinion on which solution is the best and why I think that the best solution for every one is Afforestation because is suitable for everyone, the easiest to use and it's cheaper. It can also last for many generations if looked after; it can produce many advantages for the farmer and it can protect their land from desertification, Oseremen Okpebholo ...read more.

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