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Abstract

 

This article in SSSAJ

  1. Vol. 50 No. 1, p. 259-260
     
    Received: Sept 10, 1984
    Accepted: Aug 19, 1985


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doi:10.2136/sssaj1986.03615995005000010051x

Soil Equilibration with Minimal Solution Loss1

  1. Ginger K. Hooper and
  2. J.A. Kittrick2

Abstract

Abstract

Both gas exchange and moisture loss are important experimental variables influencing the attainment of equilibria in CO2-dependent systems. The Kimble permeable membrane (PM) cap and perforated parafilm were tested for both CO2 flow across the membrane and moisture holding ability. Samples of calcite and calcite + soil were equilibrated in an open atmosphere (of known CO2 content). No significant difference in pH − 1/2pCa2+ − 1/2pCO2 was found between the PM cap and the parafilm, perforated to allow gas exchange. However, the moisture loss for perforated parafilm was 10 times greater than with the PM cap.

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