Soil erosion effects on soil productivity southwest watershed. Soil erosion reduces cropland productivity and contributes to the pollution of adjacent watercourses, wetlands and lakes. Available data indicate that the effects of land erosion are widespread. Causes, effects and types of erosion water, wind, glacier. The water flowing in the rivers and streams tend to eat away the soils along the water systems leading to a vshaped erosive activity. Runoff washes away the soil particles from sloping and bare lands while wind blows away loose and detached soil particles from flat and unprotected lands. Pdf effects of soil erosion on agricultural productivity. Soil erosion issues in agriculture ebook pdf jan 30, 2020 ebook by. Managing for soil erosion land resources and environmental. The flow of rivers and streams causes valley erosion.
The major objective of studying this lesson is to understand the. Tillage erosion causes the thinning of soils on upper slope areas and can result in. Pdf soil is the most fundamental and basic natural resource for all life to survive. Man can also cause soil erosion by such practices as tilling a farmers field or the. Soil erosion occurs when upper layers of soil are removed from their original location in the process that is either slow and goes unnoticed for long periods of time or can be sudden and cause immediate damage for example. Soil erosion is a worldwide challenge for sustainability of agriculture especially in the tropical region. Irving wallace library soil erosion issues in agriculture edited by danilo godone and silvia stanchi isbn 978 953 307 435 1 pdf isbn 978 953 51 4916 3 published 2011 10. When the rivers and streams are full of soil deposits due to sedimentation and the valley levels up with the surface. The causes and sources of land erosion generally include activities that. Soil erosion is the detachment and movement of soil material. The rate of erosion can be increased by activities other than those of humans. Water and wind erosion are two main agents that degrade soils. This loss of cropland to the effects of soil erosion often results in the.
Another cause of accelerated exposure is that exposed subsoils may increase erosion on adjacent areas of a field. Soil erosion over decades can have detrimental effects on. Rajesh kumar mishra, tropical forest research institute. Fire that destroys vegetation and triggers erosion has the same effect. Effects of soil erosion on soil properties as related to.
Water and wind erosion are two main agents that degrade. The spectacular episodes of erosion, such as the soil blowing on. Causes of soil erosion soil erosion occurs when natural forces, such as wind and water, act on the soil. In agriculture, soil erosion refers to the wearing away of a fields topsoil by the natural physical. The rates of soil erosion that exceed the generation of new topsoil are a dynamic process which leads to decline in the soil productivity, low agricultural yield and income.
In this paper, the diverse factors that cause soil erosion are assessed. An offsite effect of downstream movement of sediment, causing. The primary causes are tillage, grazing, and cutting of timber. Soil compaction, low organic matter, loss of soil structure, poor internal. Soil is the most fundamental and basic natural resource for all life to survive.
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