Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)
- Volume 34 Issue 6
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- Pages.373-379
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- 2001
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
The Weathering and Chemical Composition of Young Residual Entisols in Korea
잔적 암쇄토의 화학조성과 풍화도
- Zhang, Yong-Seon (National Institute of Agricultural Science and Technology, RDA) ;
- Jung, Pil-Kyun (National Institute of Agricultural Science and Technology, RDA) ;
- Kim, Sun-Kwan (National Institute of Agricultural Science and Technology, RDA) ;
- Jo, In-Sang (National Institute of Agricultural Science and Technology, RDA)
- Published : 2001.12.30
Abstract
The weathering rates and change of chemical composition of 6 residual Entisols derived from granite, granite-gneiss, limestone, sandstone, shale, amd basalt in Korea were studied. The chemical composition of each profile with parent rocks were determined using XRF with the physico-chemical properties and the morphology of soils. In the A horizons of all the soils except Euiseong series, the content of clay, organic matter and cation exchange capacity(CEC) showed higher than those of C horizon, but bulk density and pH showed lower than C horizon. Clay content in the soil from sandstone was decrease with soil depth, which may caused by the elluriation. In total element analysis.
우리 나라 산지토양의 주요 모암에서 발달된 잔적층 암쇄를 대상으로 토양의 단면 특성, 이화학적 특성 X-선 형광분석 (XRF)을 통하여 모재에 따른 토양의 화학조성 변화와 주요한 구성원소의 풍화량을 토양층위 및 모암별로 비교하였다. 모암에 관계없이 토양의 C층에 비하여 A층에서 점토함량, 양이온 치환용량 (CEC), 유기물 함량은 높았으며, 용적밀도 (