Soil Horizons

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Description and Tags

Environmental Science

Earth Systems and Resources

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5 Terms

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O Horizon

Decaying organic matter, lots of nutrients, holds water, darker in color

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A horizon

Topsoil, hummus and minerals, has most biological activity

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B Horizon

Subsoil, lighter in color, little organics, mostly minerals, some nutrients

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C Horizon

Least weathered layer, little organics, mostly minerals, some nutrients

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d Horizon

Bedrock, solid parent rock