Question

22. What is deforestation? How is deforestation related to increased incidence of soil erosion? Give any three points.

Answer 1

Deforestation, clearance, clearcutting or clearing is the removal of a forest or stand of trees from land which is then converted to a non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests.

i) The loss of trees, which anchor the soil with their roots, causes widespread erosion throughout the tropics.

ii) Only a minority of areas have good soils, which after clearing are quickly washed away by the heavy rains.

iii) The rivers carry the eroded soils downstream, causing significant problems.

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Answer 2

• The loss of trees, which anchor the soil with their roots, causes widespread erosion throughout the tropics.

• After heavy tropical rains fall on cleared forest lands, the run-off carries soil into local creeks and rivers.

• The rivers carry the eroded soils downstream, causing significant problems.

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