Comparison Of Methods To Estimate The Oxygen Diffusion Ratio And Air Permeability By Using The Effective Saturated And Soil Moisture

آب و خاک

Article 15, Volume 27, Issue 5, November 2014, Pages 1023-1033   

Document Type: Research Article

DOI: 10.22067/jsw.v0i0.20431

Author

panah mohamadi^*

Abstract

Gas diffusion ratio in the soil in compare to diffusion in the atmosphere (DP/D0) and air permeability in the soil (Ka) is a function of soil physical characteristic, including pore size, continuity and air porosity.The results showed that with increase in soil moisture and Se, DP/D0 and Ka decreased as a logarithmic function. Maximum and minimum value are obtained, at low and high humidity (near saturation), respectively

Keywords

Oxygen meter; Gas diffusion; Air permeability; Soil Moisture; Effective saturation