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  2. Podzol - Wikipedia

    en.wikipedia.org/wiki/Podzol

    In the lower soil layers, the organic complexing agents can be degraded by functioning microorganisms. Already established complexes in the B horizon can act as a filter, as they adsorb the traveling complexes from the upper soil horizons. A decreased water conductivity due to higher clay content can also result in the early flocculation of ...

  3. Soil horizon - Wikipedia

    en.wikipedia.org/wiki/Soil_horizon

    A soil layer is a zone in the soil, approximately parallel to the soil surface, with properties different from layers above and/or below it. If at least one of these properties is the result of soil-forming processes, the layer is called a soil horizon. In the following, the term layer is used to indicate the possibility that soil-forming ...

  4. Soil formation - Wikipedia

    en.wikipedia.org/wiki/Soil_formation

    Soil formation, also known as pedogenesis, is the process of soil genesis as regulated by the effects of place, environment, and history. Biogeochemical processes act to both create and destroy order within soils.

  5. File:Soil profile.svg - Wikipedia

    en.wikipedia.org/wiki/File:Soil_profile.svg

    Size of this PNG preview of this SVG file: 414 × 599 pixels. ... Soil_profile.png A – surface (the part above the dashed line is sometimes classified as O ...

  6. Stonelayer - Wikipedia

    en.wikipedia.org/wiki/Stonelayer

    A stonelayer, or soil stonelayer, or stone line, is a three-dimensional subsurface layer, or soil horizon, dominated by coarse particles (>2mm), that generally follows (mimics) the surface topography (Sharpe 1938).

  7. USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/USDA_soil_taxonomy

    About 1,000 soil subgroups are defined in the United States. [6] A soil family category is a group of soils within a subgroup and describes the physical and chemical properties which affect the response of soil to agricultural management and engineering applications. The principal characteristics used to differentiate soil families include ...

  8. File:SoilStack.PNG - Wikipedia

    en.wikipedia.org/wiki/File:SoilStack.PNG

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  9. Soil morphology - Wikipedia

    en.wikipedia.org/wiki/Soil_morphology

    Field equipment for soil description. Soil morphology is the branch of soil science dedicated to the technical description of soil, [1] particularly physical properties including texture, color, structure, and consistence. Morphological evaluations of soil are typically performed in the field on a soil profile containing multiple horizons. [2]