In Universal Soil Loss Equation (USLE), K stands for

USLE stands for Universal Soil Loss Equation, which is a powerful tool that is widely used by soil conservationists. It was developed by W. H. Wischmeier. It predicts the annual soil loss per unit area. A = R × K × L × S × C × P
Where R = rainfall factor
K = soil erodibility factor
L = slope length factor
S = slope gradient factor
C = cropping management factor
P = Erosion control management factor