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THE EFFECT OF AGRICULTURE Soil erosion is the removal of the fertile topsoil by the weathering action of rain and wind. Soil erosion is enchanced by poor agricultural practices. monoculture on the same piece of land will exhaust certain essential mineral salts and the land become infertile, erosion will occur easily using inorganic fertilizers can increase the nutrients content of soil,but extensive use will worse the texture of the soil until the land become useless the removal of hedges surrounding the fields for large-scale farming lead to soil erosion easily due to the removal of the wind break, mechanical ploughing loosens soil and speed up erosion overgrazing Too large a population of animals (sheeps) rearing on a piece of grassland will destroy the growing points of grasses due to overgrazing. Without plant cover, the land easily erodes. The trampling of such a large population of animals on soil rapidly compacts it into a hard layer that can hardly absorb any rain. The dry soil is easily blown away. Problems resulting from soil erosion )There is a loss of valuable agricultural land. )The soil washed down to rivers may lead to flooding.