Moscow University Soil Science Bulletin

, Volume 73, Issue 1, pp 1–4 | Cite as

Diagnostics of Compaction of Arable Soils in the Transvolga Region in Saratov Oblast

  • A. S. Sorokin
  • G. S. Kust
Genesis and Geography of Soils


The evidence and factors of the formation of compact horizons in haplic chernozems are discussed. They include a complicated combination of agronomical consolidation, modern solonetzization, and residual alkalinity. It is shown that the combination of physicomechanical and chemical properties (high content of physical clay and clay fraction, low portion of aggregate openness and high interaggregate porosity, the presence of exchangeable sodium in the soil adsorbing complex, alkaline reaction (pH 8.3), mobility of the clay-humus fraction, etc.) favor the formation of overcompacted plow and subplow horizons and their dynamic stability independently of regular mechanical cultivation.


structure degradation subplow compaction evidence of solonetzization southern chernozems 


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© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Department of Soil ScienceMoscow State UniversityMoscowRussia
  2. 2.Institute of GeographyRussian Academy of ScienceMoscowRussia

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