Classification of shallow and skeletal mountain soils with the WRB system on the example of the Trialeti Range, Lesser Caucasus (Georgia)
DOI:
https://doi.org/10.2478/bgeo-2018-0004Keywords
WRB evolution, Continuous Rock, Leptic qualifier, shallow soils, HyperskeleticAbstract
The aim of the paper is to evaluate usefulness of World Reference Base for Soil Resources (WRB) 2015 to classify shallow soils on mountains of the Trialeti Range, Lesser Caucasus, Georgia. Article also presents evolution of concept Leptosols, as well as qualifier Leptic and diagnostic property of continuous rock. Approaches for definition of keys in reference soil group (RSG) of Leptosols and identification of principal and supplementary qualifiers in WRB 2015 on example of soils of Trialeti Range are provided. According to the WRB system, few examples of classification such shallow and stony soils with different set of qualifiers has been given. Most of them full fill criteria of Leptosols and Regosols. These soils occur on the mountains range together with other RSGs (e.g. Pheozems). Authors propose to add qualifier Technolithic to the list of Principal/Supplementary qualifiers of Leptosols.
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