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Published in Soil Sci Soc Am J 24:41-44 (1960)
© 1960 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Some Physical and Chemical Changes in the Soil Brought about by Saturation With Natural Gas1

Russell S. Adams, Jr. and Roscoe Ellis, Jr.2

ABSTRACT

Severe chemical and physical changes may occur in soils saturated with natural gas. Plant growth may be retarded or completely eliminated.

A study was made of the profile of four gas-saturated field sites and the adjacent normal soils. Determinations were made for total carbon, available P, pH, exchange-able Mn, exchangeable ferric iron, and exchangeable ferrous iron. At two sites pH titration curves were determined. A sharp inflection in the curve at pH 2 was observed with gas-saturated soils. Substantial increases of total carbon, exchangeable Mn, and exchangeable ferric iron occurred in the gas-saturated soil. Exchangeable ferrous iron increased moderately. Determinations of soil pH and available P gave varied results, but in general showed increases in the gas-impregnated soils. Physical determinations at the two most severely affected sites revealed some increase in water retention and total porosity with a corresponding decrease in bulk density in the gassaturated soils. The disturbed Fe-Mn relationships may be one of the major factors accounting for the frequently observed detrimental influence of gas-saturated soils on vegetative growth. The change in water retention was not considered injurious to the plants.

NOTES

1 Contribution No. 653, Department of Agronomy, Kansas Agr. Exp. Sta., Manhattan. Portion of a thesis submitted by the senior author as partial fulfillment of the requirements for the M.S. degree. Presented before Div. II, Soil Science Society of America, Cincinnati, Ohio, Nov. 18, 1959.

2 Graduate Research Assistant and Associate Agronomist, respectively.

Received for publication August 6, 1959. Accepted for publication September 23, 1959.






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