Structure and stability of soil aggregates |
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| Authors: | K Yu Khan A I Pozdnyakov B K Son |
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| Institution: | (1) Prioksko-Terrasnyi State Natural Biospheric Reserve, Danki, Moscow oblast, 142290, Russia;(2) Faculty of Soil Science, Moscow State University, Leninskie gory, Moscow, 119992, Russia;(3) Institute of Fundamental Problems of Biology, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino Moscow oblast, 142290, Russia |
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| Abstract: | The formation and disintegration of macroaggregates into water-stable particles in a wide range of soil water contents—from the hygroscopic moisture to the capillary saturation moisture—were analyzed. It was found that the disintegration of macroaggregates into water-stable particles follows an exponential law. As the system becomes a three-phase system, neighboring particles in the macroaggregate are pressed together due to capillary pressure, and strong molecular bonds are formed. The disintegration curve of macroaggregates is an integral informative characteristic, which reflects the dynamics of changes in the strength properties of the macroaggregates. |
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