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soil order system

pedology

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soil classification

  • Chernozem soil profile
    In soil: Soil classification

    …in use today are the soil order system of the U.S. Soil Taxonomy and the soil group system, published as the World Reference Base for Soil Resources, developed by the Food and Agriculture Organization (FAO) of the United Nations. Both of these systems are morphogenetic, in that they use structural…

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