Lecture 4 Soil Color

Lecture 4 Soil Color - Delineating Soil Horizons Soil as a...

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1 Delineating Soil Horizons Soil as a Natural Body Parent Material Bedrock Additions Losses Translocations Transformations Differentiation Bedrock Soil Horizons Roughly parallel layers in the soil with varying composition and properties
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2 Master Horizons Master Horizons Criteria for Characterizing Criteria for Characterizing Soil Horizons Soil Horizons Color Color Texture Texture Density Density Structure Structure Organic matter Organic matter Mineralogy Mineralogy Chemistry Chemistry Soil Color Soil Color
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3 Mineralogy of the soil/parent material Relative amount of organic matter Hydrology of the soil Soil chemistry Soil Microbes Soil Color Soil Color Determinants Coloring Agents in Soils Organic Matter Grey to Black coloration particularly in topsoil or A horizon material. Can be found in the sub-soil as an accumulation Elements and Compounds Iron, manganese Reddish to yellow-brown Purplish black Soil Color Determination
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4 Value Chroma Hue
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Lecture 4 Soil Color - Delineating Soil Horizons Soil as a...

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