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Explaining a Soil Profile

Explaining a soil ProfileHAVE YOU NOTICEDat construction sites how across section of soil has a layered look? soil near the top of the cross section is oftendark, and soil below appears lighter. What youhave seen is a soil Profile . In this unit, factorsthat contribute to the layered look you have seenwill be : Explain the soil Terms: additioneluviationilluviationlosssoil horizonssoil profilesolumsubsoilsubstratumtopsoiltran sformationtranslocationSoil ProfileAsoil profileis a vertical cross section of the soil . When exposed, varioussoil horizons,or layers of soil , become apparent. Each horizon of soil may be different from the other hori-zons in physical or chemical ways. The differences are developed from the interaction of suchsoil-forming factors as parent material, slope, native vegetation, weathering, and : Explaining a soil ProfilePage by CAERT, Inc. Reproduction by subscription (Courtesy, Natural Resources Conservation Service, USDA)A soil Profile is usually studied to a depthof 3 to 5 feet.

Soil scientists study the chemical, physical, biological, and mineral characteristics of soil. Their study of the soil is frequently associated with plant growth. The work of a soil scientist might include the responses of various soil types to fertilizers, soil composition, and drainage patterns.

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Understanding Soil Texture and Structure

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Explaining a Soil Profile

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