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| International Agrophysics |
| publisher: | Institute of Agrophysics
Polish Academy of Sciences
Lublin, Poland |
| ISSN: |
0236-8722 |
vol. 19, nr. 1 (2005)
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Water vapour adsorption by soil aggregate fractions
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Kharitonova G.V. 1, Shein E.V. 2, Vityazev V.G. 2, Lapekina C.I. 3
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1 Institute of Aquatic and Ecological Problems, Far East Division, Russian Academy of Sciences, 65 Kim-Yu-Chen Str., Khabarovsk, 680000 Russia |
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2 Faculty of Soil Science, Moscow State University, Vorob’evy gory, Moscow, 119899 Russia |
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3 Computer Center, Far East Division, Russian Academy of Sciences, 65 Kim-Yu-Chen Str., Khabarovsk, 680000 Russia |
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vol. 19 (2005), nr. 1,
pp. 47-52
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abstract
Water vapour adsorption by soil aggregates of humus accumulating soil horizon (fractions £0.1, 0.1-0.25, …, 5-10 , >10 mm) is found to be adequately described in the range of 0.1£ p/p0 £0.98 by the equation W = Wmh[(p/p0)6-(p/p0)3 + (p/p0)]+Wres, where: Wmh – maximum hygroscopic moisture, Wres – residual water content or model fitting coefficient. The main parameter Wmh of the dependence W=f(p/p0) of aggregated part of soil is determined by soil type.
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keywords
water vapour adsorption, soil aggregates
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