Analysis of sulfur-containing components of a soil treated with simulated acid rain

✍ Scribed by Gary W. Vanloon; George W. Hay; Raymond H-T. Goh

• Book ID: 104658657
• Publisher: Springer Netherlands
• Year: 1987
• Tongue: English
• Weight: 457 KB
• Volume: 34
• Category: Article
• ISSN: 0049-6979
• DOI: 10.1007/bf00193771

✦ Synopsis

Samples of the LFH and Bfh horizons of an Orthic Humo-Ferric Podzol were analyzed for S components after irrigation with simulated acid rain solutions ofpH 5.7, 3.5, and 2.0 for 720 days. Organic S was preponderant. In the LFH horizon, the mass ratio of ester sulfate: carbon-bonded S was approximately 1 : 1 for samples treated with solutions of pH 5.7 and 3.5; for the sample treated with the pH-2.0 solution, the ratio was about 2 : 1 and the concentrations of both inorganic sulfate and ester sulfate were markedly higher. In the Bfh horizon, carbon-bonded S was the major form of organic S, except in the sample subjected to the high-acid (pH 2.0) simulated rain. The organic S components were further separated into chloroform-soluble, aqueous trifluoracetic acid-soluble, and residual fractions. Significant increases in inorganic sulfate, both water soluble and adsorbed were found after the pH-2.0 treatment.