Causes of Soil Erosion – by Oh Jin Taek, Year 9, Sayfol International School
There
are many kinds of disasters. Some are caused by humans and some are caused by
nature. Some countries, like Nepal, are facing a lot of difficulty because of
soil erosion. It destroys crops, wild life and even human life. There are
several causes of soil erosion.
The
first reason is overgrazing. It means grazing too many animals in one small
area. Sometimes too many animals are concentrated in one area because nowadays,
there is not enough land for animals to graze. Therefore, they eat up and
destroy the vegetation in that area. This leaves the ground bare and
unprotected. Wind and rain can then carry off the loose soil. The solution to
this problem is to make fenced areas.
The
second reason soil gets eroded is because of deforestation. Trees are very good
‘barrier’ of soil. The roots hold the soil tightly together so that the soil is
kept stable. The leaves also protect the soil from the wind and rain that can
carry off soil. Trees provide a lot of things to humans, for example, paper,
medicine, furniture, instruments and so on. That is why they often get cut
down. Government agencies must protect the forest to stop deforestation.
The
third reason is up and down ploughing. Farmers find it easier to plough up and
down a slope rather than across it. So, when it rains, water flows straight
down the furrows. Then, it take with it large amount of soil. The furrows can
quickly turn into deep gullies. Then more soil will be eroded and that soil
blocks rivers and roads. Finally, the slopes are eroded. The solution is to
make small dams.
In
conclusion, the results of soil erosion are terrible. It covers the village and
blocks traffic. Large areas of land are becoming desserts. So the problem of
soil erosion needs to the solved urgently. Let’s start by planting trees!
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