Question
Describe Universal Soil Loss Equation (USLE) for estimation of water erosion losses along with defining its various terms.
The Universal Soil Loss Equation (USLE) is a tool used to estimate the amount of soil loss due to water erosion in a given area. The equation is based on five factors that influence soil loss: rainfall and runoff erosivity, slope gradient and length, soil erodibility, vegetation cover, and conservation practices. These factors are combined in a mathematical formula to estimate the average annual soil loss from a particular field or watershed.
The five factors in the USLE are defined as follows:
Rainfall and Runoff Erosivity (R): This factor is a measure of the energy of the rainfall and runoff, and is determined by the total amount of rain, the number of erosive storms, and the maximum 30-minute rainfall intensity.
Slope Gradient and Length (LS): This factor is a measure of the slope of the land and its length, and takes into account the steeper the slope, ___ ________ ______ ___________ _____________ _____________ _________ _________ _____ __________ ______ ____________ ____________ _____.
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Define artificial groundwater recharge. Write advantages of artificial groundwater recharge. Enlist methods of artificial groundwater recharge.
Describe Universal Soil Loss Equation (USLE) for estimation of water erosion losses along with defining its various terms.
Define soil erosion. Explain causes of soil erosion. Describe the different forms of water erosion.
Describe the processes of wind erosion. Explain the factors affecting wind erosion.
Describe biological and agronomic measures to control soil erosion
Describe the processes of wind erosion. Explain the factors affecting wind erosion.
Define artificial groundwater recharge. Write advantages of artificial groundwater recharge. Enlist methods of artificial groundwater recharge.
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