Question

In Wind Erosion Equation, E = f (I C K L V) suggested by Chepil and Woodruff(1963) to calculate soil loss. Where " I "stands for:

• A. Soil Erodibility
• B. Soil Erosivity
• C. Soil Surface Roughness
• D. Vegetation Cover

Hint:

- \(I\) \(\rightarrow\) Soil Erodibility (inherent soil property)
- \(C\) \(\rightarrow\) Climatic factor (environmental force)
- \(V\) \(\rightarrow\) Vegetative cover (management option)

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The Wind Erosion Equation (WEQ) is a mathematical model developed to estimate potential wind-driven soil loss from agricultural and forest landscapes.

Step 2: Detailed Explanation:
In the standard WEQ formulated by Chepil and Woodruff (1963): \[ E = g(I, K, C, L, V) \] Where:
- \(E\) is the estimated annual soil loss.
- \(\mathbf{I}\) is the Soil Erodibility Index (reflecting soil properties like aggregate size).
- \(K\) is the soil ridge roughness factor.
- \(C\) is the local climatic factor (wind velocity and moisture).
- \(L\) is the unsheltered travel distance of wind.
- \(V\) is the vegetative cover factor.

Step 3: Final Answer:
The variable "I" in the Wind Erosion Equation stands for Soil Erodibility.