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Relationships between quality and quantity of soil labile fraction of the soil carbon in Cambisols after liming during a 5-year period

Author

Listed:
  • L. Kolář

    (Department of Applied Plant Biotechnologies, Agricultural Faculty, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • V. Vaněk

    (Department of Agroenvironmental Chemistry, and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • S. Kužel

    (Department of Applied Plant Biotechnologies, Agricultural Faculty, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • J. Peterka

    (Department of Applied Plant Biotechnologies, Agricultural Faculty, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • J. Borová-Batt

    (Department of Applied Plant Biotechnologies, Agricultural Faculty, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • J. Pezlarová

    (Department of Applied Plant Biotechnologies, Agricultural Faculty, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

Abstract

The labile fraction of soil organic carbon (SOC) in terms of its quantity is a sensitive but dynamic indicator of the reactive agent in soils. If it is to be considered as a feature of soil quality, the value of its quantity should be completed by data on its quality. It can be expressed by the value of the rate constant of microbial oxidation kbio of this fraction or by data on chemical stability during hydrolysis or oxidation. If the quality of SOC labile fraction is not determined, at least the ratio of CMIC: Corg should be given. The adjustment of soil acidity increases the microbial activity of soils, therefore the quantity of SOC labile fraction decreases and at the same time kbio decreases proportionately to the increasing stability of soil organic matters. During a 5-year period after the liming the soils acidify again and this process passes the faster the lesser their ion exchange capacity and buffering are. The quantity of the labile fraction of SOC raises again, its stability decreases and kbio raises again. The conversion pH value has secondary relevance.

Suggested Citation

  • L. Kolář & V. Vaněk & S. Kužel & J. Peterka & J. Borová-Batt & J. Pezlarová, 2011. "Relationships between quality and quantity of soil labile fraction of the soil carbon in Cambisols after liming during a 5-year period," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(5), pages 193-200.
    • Handle: RePEc:caa:jnlpse:v:57:y:2011:i:5:id:453-2010-pse
    DOI: 10.17221/453/2010-PSE
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    References listed on IDEAS

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    1. Ladislav Kolář & Rostislav Ledvina & Stanislav Kužel & František Klimeš & Pavel Štindl, 2006. "Soil Organic Matter and its Stability in Aerobic and Anaerobic Conditions," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 1(2), pages 57-64.
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    Cited by:

    1. R. Duffková & H. Macurová, 2011. "Soil biological quantity and quality parameters of grasslands in various landscape zones," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(12), pages 577-582.

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