Sir my question what are the method of preventing or reducing soil erosion.
Answers
Answer:
The various methods for preventing or reducing soil erosion are:
i. By preventing over grazing.
ii. By planting more and more trees, as the roots of the trees hold the soil in place.
iii. By contour ploughing.
iv. By keeping the vegetation cover on the ground to reduce the effect of wind and water.
Explanation:
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Answer:
Preventive methods of soil erosion
(i) Afforestation Planting more trees reduces soil erosion.
(ii) Contour Ploughing Ploughing land in furrows across the natural slope of the land helps trap water and prevent the washing away of top soil along with it.
(iii) Step (terrace) Farming Farmers form a series of steps by making horizontal strips supported by walls to catch the descending water. It gives the water sufficients time to percolate into the soil and nourish the crop.
(iv) Soil Cover After harvesting a crop, soil is covered with dried vegetation to prevent its erosion.
(v) Overgrazing Grasses tend to bind soil particles to prevent their erosion. If overgrazing is allowed, the grasses are uprooted and soil gets eroded.