Effect of sulfuric acid and sulfur dioxide on the aggregate stability of calcerous soils

Journal Article · Mon Dec 31 23:00:00 EST 1973 · Soil Sci.; (United States)

OSTI ID:7232011

Miyamoto, S; Bohn, H L; Ryan, J; Yee, M S

The water-stable soil aggregates were measured for two noncalcerous, two sodic-calcerous, and six calcerous soils as affected by sulfuric acid and sulfur dioxide treatment. The aggregate stability, the percentage of silt and clay remaining as a greater than 50 micron aggregate, decreased with increasing amounts of H/sub 2/SO/sub 4/ and SO/sub 2/. When H/sub 2/SO/sub 4/ was applied at 1.3 times the acid-titratable basicity of the soils, the aggregate stability decreased on the average from 62 to 17 percent in the calcerous soils and from 45 to 32 percent in the noncalcerous soils. The relative aggregate stability, the ratio of the destroyed portion of the aggregate to its total, decreased similarly with relative acidification for all the calcerous soils. Drying at 105/sup 0/C for 24 hr after the H/sub 2/SO/sub 4/ further destroyed approximately 10 percent more aggregate at 20 percent neutralization of the basicity. The sorption of SO/sub 2/ from moist streams also reduced the aggregate stability but the reduction was less than equivalent amounts of H/sub 2/SO/sub 4/ solutions.

• OSTI ID: 7232011
• Journal Information: Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 118:5; ISSN SOSCA
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CLAYS
ENVIRONMENTAL EFFECTS
GROUND WATER
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
SAMPLING
SILT
SOILS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFURIC ACID
WATER