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Humus Forms in Forest Soils: Concepts and Classifications

  • Soil Chemistry
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Abstract

The concepts and classifications of humus forms developed since the time of scientific pedology formation are critically discussed. The concept of humus forms (types) relates to the classification of a set of topsoil organic and organomineral horizons, which reflects morphologically distinct phases of plant litter and soil organic matter decomposition, but not to the fractions of soil organic matter. Humus forms reflect various types of transformation and accumulation of organic matter in the soil. The stages of development and modern classifications of humus forms abroad are described. The taxonomy of humus forms in Russian literature and its application for the mapping and evaluation of forest soils are considered, as well as its use for the mathematical simulation of soil organic matter mineralization and humification. Prospects for the development of the classification of humus forms in combination with the basic soil classification of European Russia are discussed. A call for an understanding and a common language in soil science at the international level is underlined.

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  1. University of Applied Sciences, Bingen, 55411, Germany

    O. G. Chertov

  2. St. Petersburg State University, St. Petersburg, 198904, Russia

    M. A. Nadporozhskaya

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Original Russian Text © O.G. Chertov, M.A. Nadporozhskaya, 2018, published in Pochvovedenie, 2018, No. 10, pp. 1202–1214.

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Chertov, O.G., Nadporozhskaya, M.A. Humus Forms in Forest Soils: Concepts and Classifications. Eurasian Soil Sc. 51, 1142–1153 (2018). https://doi.org/10.1134/S1064229318100022

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