The Universal Soil Loss Equation Flashcards
1
Q
What is the USLE formula?
A
A = R x K x L x S x C x P
2
Q
What does the symbol A stand for?
A
- rate of erosion
annual soil loss
3
Q
What does the symbol R stand for ?
A
- rainfall erosivity factor
measure of the potential ability of soil to be eroded by rain
4
Q
What does the symbol K stand for ?
A
- soil erodibility factor
susceptibility of soil particles to detachment by rainfall and runoff
5
Q
What does the symbol L stand for ?
A
- slope length factor
effects of slope length
6
Q
What does the symbol S stand for ?
A
- slope gradient factor
steepness of slope
7
Q
What does the symbol C stand for ?
A
- cropping management factor
impact of vegetation
8
Q
What does the symbol P stand for ?
A
- erosion control factor
effect of type of ploughing
9
Q
What is the natural rate of soil formation ?
A
9 t ha-1 yr-1
- erosion rates below this may be considered to be sustainable
