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http://dx.doi.org/10.9720/kseg.2021.4.731

Comparison of Physicochemical Characteristics of Topsoil and Subsoil for Soil Conservation and Management  

Lee, So-Jin (Corporate Research Institute, Nature and Tech Inc.)
Choo, Chang-Oh (Department of Earth and Environmental Sciences, Andong National University)
Kim, Jong-Tae (Corporate Research Institute, Nature and Tech Inc.)
Jeong, Gyo-Cheol (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
The Journal of Engineering Geology / v.31, no.4, 2021 , pp. 731-739 More about this Journal
Abstract
This research aimed to analyze the characteristics of topsoil for soil conservation and promote the process of turning subsoil into topsoil. The physicochemical characteristics of topsoil and subsoil of different types of soil were compared, and their quantitative differences were examined. 204 soil samples were collected from a total of 102 areas according to rock types. These samples were tested to measure grain size, water content, and unit weight, along with XRF and XRD analyses. The topsoil and subsoil of the soil samples were also analyzed. The results of this research showed that the topsoil and subsoil had different physical characteristics, and that the chemical alteration index of the topsoil was higher than that of the subsoil. This would imply that the topsoil was high in clay minerals since it was directly affected by weathering more than the subsoil. In particular, vermiculite, one of the final products generated from weathering, was common in the topsoil.
Keywords
topsoil; subsoil; physical characteristic; chemical alteration index; clay mineral;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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