Download (PDF 510 KB): https://research.fs.usda.gov/download/treesearch/11504.pdf
Abstract
The effect of artificial acid rain on nitrogen uptake by a fungus [
Glomus mosseae (Nicol. & Gerd. ) Gerd. & Trappe] endomycorrhizal with roots of sweetgum tree seedlings (
Liquidambar styraciflua L.) was investigated by applying 3 kinds of test solutions to the surfaces of soil profiles planted with five combinations of sweetgum seedlings and fungus. Soil profiles were taken from a deciduous forest and were reconstituted in plastic pipes. Test solutions applied in different months were 1) artificial throughfall, 2) high ionic strength solutions first of pH 5.9 and later of pH 3.0, and 3) artificial eastern U.S. acid rain. The five combinations of soil and plants used were: 1) sterilized soil, 2) sterilized soil + sweetgum seedlings, 3) sterilized soil + mycorrhizal fungus on pruned sweetgum seedlings, 4) sterilized soil + sweetgum seedlings + mycorrhizal fungus, and 5) sterilized soil + sweetgum seedlings + mycorrhizal fungus + indigenous microorganisms. Nitrogen concentrations in soil solution samples collected by filter candles from 5 and 25 cm depths within the soil columns were determined calorimetrically.
Parent Publication
Citation
Haines, Bruce; Best, George Ronnie. 1976. The influence of an endomycorrhizal symbiosis on nitrogen movement through soil columns under regimes of artificial throughfall and artificial acid rain. In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 951-961
