soil erosion essay.
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Answer:
Soil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air , plants, animals, and humans. In accordance with these agents, erosion is sometimes divided into water erosion, glacial erosion, snow erosion, wind erosion, zoogenic erosion and anthropogenic erosion.Soil erosion may be a slow process that continues relatively unnoticed, or it may occur at an alarming rate causing a serious loss of topsoil. The loss of soil from farmland may be reflected in reduced crop production potential, lower surface water quality and damaged drainage networks.Soil erosion could also cause sinkholes.
Human activities have increased by 10–50 times the rate at which erosion is occurring globally. Excessive erosion causes both "on-site" and "off-site" problems. On-site impacts include decreases in agricultural productivity and (on natural landscapes) ecological collapse, both because of loss of the nutrient-rich upper soil layers. In some cases, the eventual end result is desertification. Off-site effects include sedimentation of waterways and eutrophication of water bodies, as well as sediment-related damage to roads and houses. Water and wind erosion are the two primary causes of land degradation; combined, they are responsible for about 84% of the global extent of degraded land, making excessive erosion one of the most significant environmental problems worldwide.
Intensive agriculture, deforestation, roads, anthropogenic climate change and urban sprawl are amongst the most significant human activities in regard to their effect on stimulating erosion. However, there are many prevention and remediation practices that can curtail or limit erosion of vulnerable soils.
Answer:
Soil is the uppermost layer of our planet. It is formed by the breakdown of rocks.Soil is a rich source of water and minerals. It is with the help of soil we are able to grow plants and trees.
But by various activities, soil is washed away. Soil erosion generally occurs due to running water, wind , waves and snow. It has taken more than a million years to form the soil that we are seeing now. Thus, if we lose a layer of soil it takes again many hundred years to restore a pinch of it.
Soil erosion generally occurs due to improper vegetation and lack of care. When a land is left barren for weeks it leads to soil erosion. Soil erosion also occurs due to plundering of soil beyond a limit. Soil is used for many purposes like construction. When humans continue to do such activities ecosystem is totally disturbed and it leads to many drastic effects.
The best solution for this problem is to grow more trees especially in barren lands. We should not litter the land. We should learn to segregate wastes as biodegradable and non biodegradable wastes. We should never allow the non biodegradable to enter the soil. We should reuse, recycle, reduce and refuse respective materials and respective places.
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