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T5+Slides - Soil Formation Topic #5 Goals Understand the...

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1 Soil Formation Topic #5 Goals Understand the processes and factors controlling the formation of soils Parent Material Additions Translocation Losses Transformations Losses Additions Four Major Soil Forming Processes Transformations - alterations Physical weathering Chemical weathering Clay mineral formation (Soils are clay factories!) Raw organic matter to humus (Oi Oa) Transformations Translocation - transport Transport up or down in profile Transport agents within soil profile: Water Soil organisms (e.g., gophers, worms) Translocation
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2 Additions Organic matter from vegetation and animals Dust (eolian materials) Soluble components in precipitation Salts from groundwater Additions Additions Losses Leaching of soluble components Erosion (by wind or water) Losses Losses Soil Forming Factors Climate Organisms Relief Parent material Time Remember: Clorpt Factors Soils Processes Additions Losses Transformation
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T5+Slides - Soil Formation Topic #5 Goals Understand the...

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