GK
SOIL EROSION AND CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Low rainfall
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Local resident
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Unfertility of soil
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Goat and grazing animals
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Detailed explanation-1: -Major problem in desert is lack of rainfall. While grazing of animals and local residents can be controlled but without rainfall growth of trees and afforestation is not possible.
Detailed explanation-2: -The roots of trees firmly hold the topmost layer of the soil. They do not allow natural forces like wind, water, etc., to carry away the top most fertile layer of the soil easily. Afforestation refers to the planting of trees in an area, which will prevent soil erosion.
Detailed explanation-3: -Desert forestry is the process of man-made reclaiming of deserts for ecological reasons (biodiversity), farming and forestry and also for reclamation of natural water systems. It is done by various methods. So far only arid and semi-arid deserts are considered suitable for growing forests.