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Air Permeability - Soil Physics - Lecture Slides, Slides of Soil Physics

Soil physics is the study of soil physical properties and processes. It is applied to management and prediction under natural and managed ecosystems. (Wikipedia). Keywords in this lecture are: Air Premeability, Diffusion, Releative Permeability, Saturated Soil, Hydraulic Conductivity, Big pores

Typology: Slides

2012/2013

Uploaded on 12/31/2013

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Outline
Announcements
Air permeability
Diffusion
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Outline

  • Announcements
  • Air permeability
  • Diffusion

Relative permeability k r

Water permeability of saturated soil

Air permeability of dry soil

k r

0 Sw 1 1 Sa 0

Little pores

Big

pores

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Measuring air permeability

Measuring air permeability

dx

g d

Q k

k a

Q

dx

d ψ

( f a ) or ( θ)