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Volume 40, Issue 1
Division S‐1—Soil Physic

In situ Measurement of Gas Diffusion Coefficient in Soils

First published: 01 January 1976
Citations: 16

Contribution from the Dep. of Crop and Soil Sciences and of Microbiology and Public Health, Michigan State Univ., E. Lansing, MI 48824. Published as Mich. Agric. Exp. Stn. Journal Article No. 6742. This research was supported by NASA Grant No. NGR‐004‐069.

Abstract

A method for determination of the gas diffusion coefficient of soils without disturbing the natural state of the soil was developed. The method was based on the theory of radial diffusion of a finite quantity of gas into a semi‐infinite porous medium. Needles were inserted into the soil through which O2 was injected. The change of concentration of the injected O2 was determined by gas chromatography through the same needle after increasing periods of time. A least square fit between the measured O2 concentrations and that of the theoretical values was conducted to find the best fit value of the diffusion coefficient. The diffusion coefficient determined by the proposed method was used to calculate the flux of CO2 in field soils. The flux so calculated was compared to that measured from the field with good agreement. The method was used in several different field soils and conditions to determine the diffusion coefficients.

Number of times cited according to CrossRef: 16

  • Water and vapor transport in algal‐fungal lichen: Modeling constrained by laboratory experiments, an application for Flavoparmelia caperata, Plant, Cell & Environment, 10.1111/pce.13690, 43, 4, (945-964), (2020).
  • Determining the Diffusivity of Nitrous Oxide in Soil using In Situ Tracers, Soil Science Society of America Journal, 10.2136/sssaj2013.05.0181, 78, 1, (79-88), (2014).
  • A Simple Tool for the Inverse Estimation of Soil Gas Diffusion Coefficients, Soil Science Society of America Journal, 10.2136/sssaj2012.0347n, 77, 3, (759-764), (2013).
  • Non‐Invasive In Situ Measurement Gas Diffusivity of Topsoil, Soil Science Society of America Journal, 10.2136/sssaj2012.0046n, 76, 6, (1992-1998), (2012).
  • A Modified Method for the In Situ Measurement of Soil Gas Diffusivity, Soil Science Society of America Journal, 10.2136/sssaj2010.0272, 75, 3, (813-821), (2011).
  • Spatiotemporal Analysis of the Relative Soil Gas Diffusion Coefficient in Two Sandy Soils: Variability Decomposition and Correlations between Sampling Dates at Two Spatial Scales, Soil Science Society of America Journal, 10.2136/sssaj2010.0419, 75, 5, (1613-1625), (2011).
  • Knudsen and Molecular Diffusion Coefficients for Gas Transport in Unconsolidated Porous Media, Soil Science Society of America Journal, 10.2136/sssaj2010.0122, 75, 2, (456-467), (2011).
  • A Subsurface, Closed‐Loop System for Soil Carbon Dioxide and Its Application to the Gradient Efflux Approach, Soil Science Society of America Journal, 10.2136/sssaj2006.0101, 72, 1, (126-134), (2008).
  • A Test of Coupled Soil Heat and Water Transfer Prediction under Transient Boundary Temperatures, Soil Science Society of America Journal, 10.2136/sssaj2007.0234, 72, 5, (1197-1207), (2008).
  • Review of Field Methods for the Determination of the Tortuosity and Effective Gas‐Phase Diffusivity in the Vadose Zone, Vadose Zone Journal, 10.2136/vzj2004.1240, 3, 4, (1240-1248), (2004).
  • Physical Processes Affecting Natural Depletion of Volatile Chemicals in Soil and Groundwater, Vadose Zone Journal, 10.2136/vzj2003.2220, 2, 2, (222-230), (2003).
  • VERTICAL DISTRIBUTIONS OF CARBON DIOXIDE DIFFUSION COEFFICIENTS AND PRODUCTION RATES IN FOREST SOILS, Soil Science Society of America Journal, 10.2136/sssaj2002.1151, 66, 4, (1151-1158), (2002).
  • 4.3 Gas Diffusivity, Methods of Soil Analysis, undefined, (1113-1139), (2002).
  • Predicting the Gas Diffusion Coefficient in Undisturbed Soil from Soil Water Characteristics, Soil Science Society of America Journal, 10.2136/sssaj2000.64194x, 64, 1, (94-100), (2000).
  • Gas Diffusivity, Methods of Soil Analysis, undefined, (1089-1102), (1986).
  • Tillage Effects on Soil Aeration, Predicting Tillage Effects on Soil Physical Properties and Processes, undefined, (91-104), (1982).