Rashtriya Krishi (English)

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Effect of Soil Erosion on Indian Agriculture


Affiliations
1 Department of Agronomy, SardarVallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), India
2 Department of Soil Science, SardarVallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), India
     

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Soil erosion is a world-wide challenge for sustainability of agriculture especiallyin the tropical region. The rates of soil erosion that exceed the generation of new top soilare a dynamic process which leads to decline in the soil productivity, low agricultural yield and income. The balance between soil-forming and depleting processes is of utmost importance for attaining long-term sustainability in any production system. Land degradation in the form of soil erosion is a major problem in the semiarid region of Lower Chambal Valley. In the present study Land sat satellite images for the years of 1977, 1990 and 2000 have been used to identify the change in degraded land in the region. Evidences suggest that the rate of encroachment of arable land is high and is equal to spreading rate of degraded land. The data obtained by field survey reveal that productivity of crop land is negatively correlated with share of degraded land to gross cropped area. The productivity of agriculture, measured through gross value of output per area, is comparatively high in villages having fewer shares of degraded land and vice-versa. Simple linear regression model explains high variation of productivity by high share of degraded land (above 50 % of gross cropped area).
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  • Lal, R. (1987). Managing the Soils of Sub-Sahara Africa. Sci., 236 : 1069-1086.

  • Pimentel, D. (2007). Habitat Factors in New Pest Invasions, In : Kim, K.C., McPheron, B.A. (Eds.), Evolution of Insect Pests— Patterns of Variation, Wiley, New York, pp.165–181.


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  • Effect of Soil Erosion on Indian Agriculture

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Authors

Ashish Dwivedi
Department of Agronomy, SardarVallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), India
Vineet Kumar
Department of Soil Science, SardarVallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), India

Abstract


Soil erosion is a world-wide challenge for sustainability of agriculture especiallyin the tropical region. The rates of soil erosion that exceed the generation of new top soilare a dynamic process which leads to decline in the soil productivity, low agricultural yield and income. The balance between soil-forming and depleting processes is of utmost importance for attaining long-term sustainability in any production system. Land degradation in the form of soil erosion is a major problem in the semiarid region of Lower Chambal Valley. In the present study Land sat satellite images for the years of 1977, 1990 and 2000 have been used to identify the change in degraded land in the region. Evidences suggest that the rate of encroachment of arable land is high and is equal to spreading rate of degraded land. The data obtained by field survey reveal that productivity of crop land is negatively correlated with share of degraded land to gross cropped area. The productivity of agriculture, measured through gross value of output per area, is comparatively high in villages having fewer shares of degraded land and vice-versa. Simple linear regression model explains high variation of productivity by high share of degraded land (above 50 % of gross cropped area).

References