Isolating the soil type effect on the organic carbon content in a Rendzic Leptosol and an Andosol on a limestone plateau with andesite protrusions

The aim of the paper is to compare soil organic carbon (SOC) concentration and stock in a Rendzic Leptosol and a Dystric Andosol as two SOC-rich soil types. Because SOC differences between them are difficult to determine from soil databases, a suitable surface geological configuration of andesite le...

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Bibliographic Details
Published in:Geoderma 2017-09, Vol.302, p.1-5
Main Authors: Homolák, Marián, Kriaková, Erika, Pichler, Viliam, Gömöryová, Erika, Bebej, Juraj
Format: Article
Language:English
Subjects:
Allophane
Andic soils
Electrical resistivity tomography
Karst region
Organic carbon
Rendzic Leptosol
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Summary:The aim of the paper is to compare soil organic carbon (SOC) concentration and stock in a Rendzic Leptosol and a Dystric Andosol as two SOC-rich soil types. Because SOC differences between them are difficult to determine from soil databases, a suitable surface geological configuration of andesite lenses embedded within a flat limestone plateau was used for a direct comparison. All the other site conditions were identical, including topography, vegetation cover, and forest management. Twelve soil profiles, 0.6m in depth, were opened in the study area according to parent material and soil types, six profiles on limestone (Rendzic Leptosols) and six profiles on andesite (Dystric Andosol), respectively. Soil samples were taken from 0.1m layers within 0.0–0.6m depth and then analysed for SOC concentration by dry combustion method. The Student's t-test did not detect differences in SOC concentration between the two soil types. The only difference was found in the SOC stock and it was limited to the subsoil (P
ISSN:0016-7061
1872-6259
DOI:10.1016/j.geoderma.2017.04.009