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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-164944 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
7p |
Abstract |
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. |