Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effect of Simulated Acid Rain on Nitrification and Nitrogen Mineralization in Forest Soils.
Author Strayer, R. F. ; Lin, C. J. ; Alexander, M. ;
CORP Author Cornell Univ., Ithaca, NY. Dept. of Agronomy.;Corvallis Environmental Research Lab., OR.
Year Published 1981
Report Number EPA/600/J-81/695;
Stock Number PB86-164944
Additional Subjects Nitrification ; Soil microbiology ; Forest land ; Acidity ; Leaching ; Simulation ; pH ; Nitrogen inorganic compounds ; Ammonium compounds ; Exposure ; Loams ; Inhibitors ; Neutralizers ; Inorganic nitrates ; Reprints ; Acid precipitation ; Nitrapyrine
Library Call Number Additional Info Location Last
NTIS  PB86-164944 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 7p
To determine the possible microbiological changes in soil resulting from acid rain, columns containing samples of forest soils were leached with either a continuous application of 100cm of simulated acid rain (pH3.2-4.1) at 5 cm/hour or an intermittent 1.5-hour application of 1.2 cm of simulated acid rain twice weekly for 19 weeks. The upper 1.0- to 1.5-cm portions of soil from treated columns were used to determine the changes in inorganic N levels in the soil. Nitrification of added ammonium (NH4(+)) was inhibited following continuous exposure of soil to simulated acid rain of pH 4.1-3.2. The extent of the inhibition was directly related to the acidity of the simulated rain solutions. The production of inorganic N in the absence of added NH(+) was either stimulated or unaffected following continuous treatment of soils with pH 3.2 simulated acid rain. The addition of nitrapyrine, an inhibitor of autotrophic nitrification, caused a decrease in nitrification in water-treated soil but had little effect on nitrification in soil treated with pH 3.2 simulated acid rain.