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International Agrophysics |
publisher: | Institute of Agrophysics
Polish Academy of Sciences
Lublin, Poland |
ISSN: |
0236-8722 |
vol. 21, nr. 1 (2007)
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Nitrates(V) in loess soils modified by weather conditions
(preliminary data of a model experiment) |
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P. Gliński1, Z. Stępniewska2, U. Kotowska3, A. Borkowska3 |
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1 Institute of Environmental Protection Engineering, University of Technology, Lublin, Nadbystrzycka 40a, 20-618 Lublin, Poland |
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2 Environmental Protection Institute, Catholic University of Lublin, Kraśnicka 102, 20-718 Lublin, Poland |
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3 Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin 27, Poland |
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vol. 21 (2007), nr. 1,
pp. 55-59
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abstract
In a model experiment (anaerobiosis) with full saturation of soil samples with water and their incubation at 5, 10 and 20°C during 0-60 days, nitrates(V) concentration in soil solution, Eh and pH in soil sediment were determined. For the investigations 12 samples from loess soils representing surface-humus horizons were taken from various parts of 4 eroded slopes in a small river catchment near Lublin, Poland. Differentiation in nitrates concentrations in the range of 0-1.563 mg dm-3 was found, depending on the temperature and time of soil sample incubation, and also on the place of sampling along the catchment and on the slope.
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keywords
nitrates(V), Eh, pH, loess soils, anaerobic conditions
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