Profile description, properties, and classification of seven upland soils formed under different conditions in Japan, Thailand, and Indonesia

DOI Web Site 被引用文献1件 参考文献12件
  • WATANABE Tetsuhiro
    Laboratory of Soil Science, Graduate School of Agriculture, Kyoto University
  • FUNAKAWA Shinya
    Laboratory of Soil Science, Graduate School of Agriculture, Kyoto University
  • KOSAKI Takashi
    Laboratory of Terrestrial Ecosystems Management, Graduate School of Global Environmental Studies, Kyoto University

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We presented soil profile descriptions and analytical data of seven soils formed under different conditions in Japan, Thailand, and Indonesia as so-called "pedon paper". WRB, Soil Taxonomy and Unified Soil Classification System of Japan 2nd Approximation (2002) were used to classify the soils. WRB presented apparent information on clay activity, base saturation and Al saturation due to the criteria for clay activity in the highest level and the qualifiers, Dystric, Eutric and Alumic. The qualifiers used in WRB, such as Humic and Chromic, contributed to express every conspicuous property of the soils. The moisture regime in Soil Taxonomy helps to predict base saturation. Soil Taxonomy has criteria for detecting moderately high Al_o + 1/2 Fe_o of 10 g kg^<-1> as a key to the subgroup which is supposed to be useful. The Unified Soil Classification System of Japan 2nd Approximation (2002) well expressed the Japanese soils formed under different climatic conditions and differentiated them in the highest level.

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  • ペドロジスト

    ペドロジスト 51 (1), 24-34, 2007-06-30

    日本ペドロジー学会

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