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ABSTRACT
The alundum tension lysimeter originally described was modified to allow installation in shallow soils and to facilitate collection of the leachate. The lysimeter plates were located at various depths in two contrasting soil types to study the ion content of the gravitational water. In addition, the influence of potassium (added as KCl) and nitrogen (added as (NH4)2SO4) on ion movement in the soil was studied.
The ion content of the gravitational water changed markedly with soil type, depth, month of the year, and daily weather conditions. KCl and (NH4)2SO4 soil additions distinctly altered established soil dynamics, increasing movement of other soil elements including the radionuclide cesium137 from local fallout in 1954 on Rongelap Atoll soils.
1 This project was sponsored in part by the National Science Foundation and the Laboratory of Radiation Biology at the University of Washington under contract number AT (45-1) 540 of the Atomic Energy Commission, Division of Biology and Medicine. Presented before Div. V-A, Soil Science Society of America, Cincinnati, Ohio, Nov. 17, 1959.
2 Research Associate in Forestry, Associate Professor in Forest Soils, and Research Assistant Professor in Radiation Biology, respectively.
Received for publication June 21, 1960. Accepted for publication February 24, 1961.
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F. H. Bormann and G. E. Likens Nutrient Cycling Science, January 27, 1967; 155(3761): 424 - 429. [Abstract] [PDF] |
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