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AGRI 51 > chapter 8b > Flashcards

chapter 8b Flashcards

1
Q

Universal Soil Loss Equation

A

empirical equation that estimates soil erosion raindrop impact and surface runoff

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2
Q

who developed USLE

A

walter h wischmeier
dwight d smith

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3
Q

formula of USLE

A

A= 0.224 * RKLSCP

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4
Q

R
K
L
S
C
P

A

R: rainfall erosivity index
K: soil erodibility
L: slope length
S: slope steepness
C: plant cover factor
P: erosion control practice

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5
Q

limitations of USLE

A
  1. developed in america, not suitable for tropical countries
  2. only to sheet erosion
  3. exudes areas with slope above 40%
  4. average data over 20 years, not for individual storms
  5. neglects interaction between factors
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AGRI 51 (11 decks)

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